Deployment of solutions that include legacy to Ethernet aggregation should involve fault inter-working consideration. Not all protocols include a dedicated management interface over which to indicate fault. PPP, MLPPP and Cisco HDLC must use a different mechanism to communicate fault between the two different connection types.
The eth-legacy-fault-notification option and the associated parameters along with Ethernet CFM fault propagation on the Ethernet SAP MEP must be enabled to properly inter-work the Ethernet and PPP, MLPPP or Cisco HDLC connections. Figure: Fault propagation model shows the various high level functions that inter-work Ethernet aggregation and legacy interfaces using point to point Ipipe services.
In general the Ipipe service requires the ce-address information to be learned or manually configured as part of the Ethernet SAP object before the legacy interface connection can be established. IPv6 includes an optimization that uses the Link Local IPv6 address to start the legacy negotiation process and does not require the ce-addressing described previously. This IPv6 optimization does not align well with fault inter-working functions and is disabled when the eth-legacy-fault-notification function is enabled.
Fault propagation is not active from the Ethernet SAP to the legacy connection if the ce-address information for the Ethernet SAP has not been learned or configured. If both IPv4 and IPv6 are configured, each protocol requires ce-addressing to be learned or configured enabling fault inter-working for that protocol. When the ce-address has been learned or configured for that protocol, fault inter-working is active for that protocol. If either IPv4 or IPv6 ce-addressing from the Ethernet SAP is resident, the access legacy SAP is operational. The NCP layer indicates which unique protocol is operational. Fault propagation toward the Ethernet SAP from the legacy connection is still propagated even if the ce-address is not resident within the Ipipe under the following conditions; if any SAP or the Service is shutdown, or the legacy SAP is not configured.
The learned Ethernet ce-address is a critical component in Ipipe service operation and fault propagation. To maintain the address information the keep option must be configured as part of the ce-address-discovery command. If the keep command is not configured, the address information is lost when the Ethernet SAP transitions to a non-operational state. When the address information is flushed, the Ipipe service propagates the fault to the legacy PPP, MLPPP and Cisco HDLC connections. The lack of the ce-addressing on the Ethernet SAPs may cause a deadlock condition that requires operator intervention to resolve the issue. The keep command must be configured when the eth-legacy-fault-notification functionality is enabled with PPP, MLPPP and Cisco HDLC legacy interfaces, and fault propagation is required using this type of aggregation deployment. The keep option is specific to and only supported when eth-legacy-fault-notification is configured. If the keep option is configured as part of the ce-address-discovery command, the eth-legacy-fault-propagation cannot be removed. Configuration changes to the ce-address-discovery command may affect the stored ce-address information. For example, if the eth-legacy-fault-notification ipv6 keep is changed to ce-address-discovery keep, the stored IPv6 ce-address information is flushed. If the keep option is removed, all discovered ce-address information is flushed if the SAP is operationally down.
The ce-address stored in the Ipipe service as part of the discovery process is updated if a new ARP arrives from the layer three device connected to the Ethernet SAP. If the layer three device connected to the Ethernet SAP does not send an ARP to indicate the addressing information has been changed, the ce-address stored locally as part of the previous discovery function is maintained. If changes are made to the layer three device connected to the Ethernet SAP that would alter the ARP information and that device does not generate an ARP packet, or the Ipipe inter-working device does not receive the ARP packet, for example, the Ethernet SAP is admin down for IPv4, or the service is operationally down for IPv6, the stored ce-address retained by the Ipipe as a result of the keep operation is stale. This stale information results in a black hole for service traffic. The clear service id service-id arp can be used to flush stale ARP information. This does not solicit an arp from a peer.
The keep option does not maintain the ce-address information when the Ethernet SAP is administratively shutdown or when the node reboots.
After all of the ce-addressing has been populated in the Ipipe the legacy interfaces, establishment commences. The successful establishment of these connections render the Ipipe service functional. Legacy connection faults and Ethernet SAP faults may now be propagated.
Should the Ethernet SAP enter a non-operational state as a result of a cable or validation protocol (ETH-CCM), the fault is inter-worked with the specific legacy protocol. Ethernet faults inter-work with the legacy interfaces in the following manner.
PPP
LCP and all NCPs are shutdown and a terminate-request is sent to the far-end.
MLPPP
LCP remains operational but the NCP is shutdown.
HDLC
Suspension of the keepalive messages. The keepalive interval influences the recovery time. If the recovery timer (discussed later) is equal to the keepalive interval, recovery of the legacy interface recovery may occur after a fault is propagated toward the Ethernet network.
As previously stated, inter-working faults on the legacy connection with the Ethernet infrastructure requires a Down MEP with CCM-enabled configured on the Ethernet SAP with fault-propagation enabled. There are two different methods to propagate fault from a CCM-enabled MEP; use-int-tlv or suspend-ccm. The use-int-tlv approach causes the CCM message to include the Interface Status TLV with a value of is Down. This raises a defMACStatus priority error on the peer MEP. The suspend-ccm approach causes the local MEP to suspend transmissions of the CCM messages to the peer MEP. This raises a defRemoteCCM timeout condition on the peer. The peer must accept these notifications and processes these fault conditions on the local MEP. When the MEP receives these errors, it must not include a defect condition in the CCM messages it generates that is above the peers low-priority-defect setting. In standard operation, the MEP receiving the error should only set the RDI bit in the CCM header. If the MEP improperly responds with a defect condition that is higher than the low-priority-defect of the MEP that had generated the initial fault then a deadlock condition occurs and operator intervention is required. The two CFM propagation methods and the correct responses are shown in Figure: Fault propagation from legacy to Ethernet.
From a protocol (NCP) perspective, PPP and MLPPP connections have a micro view. Those connections understand the different protocols carried over the PPP and MLPPP connections, and individual protocol errors that can occur. The Ethernet SAP has a macro view without this layer three understanding. When the dual stack IPv4 and IPv6 is deployed, fault can only be propagated from the legacy connection toward the associated Ethernet SAP if both protocols fail on the PPP or MLPPP. If either of the protocols are operational then PPP or MLPPP does not propagate fault in the direction of the Ethernet connection.
Ethernet connection faults are prioritized over legacy faults. When an Ethernet fault is detected, any fault previously propagated from the PPP, MLPPP or Cisco HDLC is squelched in favor of the higher priority Ethernet SAP failure. All legacy fault conditions, including admin port down, are dismissed for the duration of the Ethernet fault and are not rediscovered until the expiration of the recovery-timer. This configurable timer value is the amount of time the process waits to allow the legacy connections to recover and establish following the clearing of the Ethernet fault. If the timer value is too short then false positive propagation occurs from the legacy side to the Ethernet connection. If the timer value is too long then secondary legacy faults are not propagated to the associated Ethernet SAP for an extended period of time, delaying the correct state on the layer three device connected to the Ethernet SAP. Any packets arriving on the Ethernet SAP are dropped until the legacy connection has recovered. As soon as the legacy connection recovers, forwarding across the Ipipe occurs regardless of the amount of time remaining for the recovery timer. Operators are required to adjust this timer value to their specific network requirements. If the timer adjustment is made while the service is active, the new timer replaces the old value and the new value starts counting down when called.
If the eth-legacy-fault-notification command is disabled from an active Ipipe service then any previously reported fault is cleared and the recovery-timer starts. If the eth-legacy-fault-notification command is added to an active Ipipe service, the process checks for outstanding faults and takes the appropriate action.
Cisco HDLC behavior must be modified to better align with the fault inter-working function. To enable the eth-legacy-fault-notification, keepalives must be enabled. The following describes the new behavior for the Cisco HDLC port:
operationally up if it is receiving keepalives and has physical link (same behavior in either case)
operationally up if keepalives are disabled locally and has physical link (irrelevant for this feature because keepalives must be enabled). This is included for completeness.
operationally down when no keepalives are received and keepalives are locally enabled (same behavior in either case)
operationally down when there is no physical port (same behavior in either case)
operationally down if it is part of a SAP but there no ce-address and has physical link (altered behavior)
operationally down if it is part of a SAP but the SAP is shutdown and has physical link (altered behavior)
operationally down if it is part of a SAP and the service is shutdown and has physical link (altered behavior)
The show service command has been expanded to include the basic Ethernet Legacy Fault Notification information and the specific SAP configuration.
The ‟Eth Legacy Fault Notification” section displays the configured recovery-timer value and whether the eth-legacy-fault-notification is active ‟Admin State: inService” (no shutdown) or inactive ‟Admin State: outOfService” (shutdown).
The ‟Ipipe SAP Configuration Information” displays the current Ethernet fault propagated to the associated legacy connection state; ‟Legacy Fault Notify”: False indicates no fault is currently being propagated and True indicates fault is currently being propagated. The ‟Recvry Timer Rem” is used to show the amount of time remaining before the recovery timer expires. A time in seconds is only displayed for this parameter if an Ethernet fault has cleared and the recovery timer is currently counting down to 0.0 seconds.
A number of examples have been included using the service configuration below to demonstrate the various conditions. Many of the display commands have been trimmed in an effort to present feature relevant information.
configure service ipipe 201 name "XYZ Ipipe 201" create
description "IPIPE_PPP"
service-mtu 1514
eth-legacy-fault-notification
recovery-timer 300
no shutdown
exit
ce-address-discovery ipv6 keep
sap 1/1/4:21 create
description "Default sap description for service id 201"
eth-cfm
mep 22 domain 1 association 45 direction down
fault-propagation-enable use-if-tlv
ccm-enable
no shutdown
exit
exit
exit
sap 2/2/1.1.2.1 create
description "Default sap description for service id 201"
exit
no shutdown
The following output is an example of a service fully operational with no faults.
show service id 201 all
===============================================================================
Service Detailed Information
===============================================================================
Service Id : 201 Vpn Id : 201
Service Type : Ipipe
Name : XYZ Ipipe 201
Description : IPIPE_PPP
Customer Id : 1 Creation Origin : manual
Last Status Change: 01/07/2015 15:07:54
Last Mgmt Change : 01/07/2015 15:07:53
Admin State : Up Oper State : Up
MTU : 1514
Vc Switching : False
SAP Count : 2 SDP Bind Count : 0
CE IPv4 Discovery : Enabled Keep address : Yes
CE IPv6 Discovery : Enabled Stack Cap Sig : Disabled
Eth Legacy Fault Notification
-------------------------------------------------------------------------------
Recovery Timer : 30.0 secs Admin State : inService
-------------------------------------------------------------------------------
ETH-CFM service specifics
-------------------------------------------------------------------------------
Tunnel Faults : ignore
-------------------------------------------------------------------------------
Service Destination Points(SDPs)
-------------------------------------------------------------------------------
No Matching Entries
-------------------------------------------------------------------------------
Service Access Points
-------------------------------------------------------------------------------
-------------------------------------------------------------------------------
SAP 1/1/4:21
-------------------------------------------------------------------------------
Service Id : 201
SAP : 1/1/4:21 Encap : q-tag
Description : Default sap description for service id 201
Admin State : Up Oper State : Up
Flags : None
Multi Svc Site : None
Last Status Change : 01/07/2015 15:07:53
Last Mgmt Change : 01/07/2015 15:07:52
Sub Type : regular
Dot1Q Ethertype : 0x8100 QinQ Ethertype : 0x8100
Split Horizon Group: (Not Specified)
Admin MTU : 1518 Oper MTU : 1518
Ingr IP Fltr-Id : n/a Egr IP Fltr-Id : n/a
Ingr Mac Fltr-Id : n/a Egr Mac Fltr-Id : n/a
Ingr IPv6 Fltr-Id : n/a Egr IPv6 Fltr-Id : n/a
qinq-pbit-marking : both
Egr Agg Rate Limit: max
Endpoint : N/A
Q Frame-Based Acct : Disabled Limit Unused BW : Disabled
Agg Burst Limit : default
Acct. Pol : None Collect Stats : Disabled
Application Profile: None
Transit Policy : None
Oper Group : (none) Monitor Oper Grp : (none)
Host Lockout Plcy : n/a
Ignore Oper Down : Disabled
Lag Link Map Prof : (none)
-------------------------------------------------------------------------------
ETH-CFM SAP specifics
-------------------------------------------------------------------------------
Tunnel Faults : n/a AIS : Disabled
MC Prop-Hold-Timer : n/a
Squelch Levels : None
-------------------------------------------------------------------------------
Ipipe SAP Configuration Information
-------------------------------------------------------------------------------
Configured CE IPv4 : n/a Discovered CE IPv4: 32.32.32.1
SAP MAC Address : fe:ed:01:01:00:04 Mac Refresh Inter*: 14400
-------------------------------------------------------------------------------
Ipipe SAP IPv4 ARP Entry Info
-------------------------------------------------------------------------------
32.32.32.1 fe:4e:01:01:00:03 dynamic
-------------------------------------------------------------------------------
Ipipe SAP IPv6 Neighbor Entry Info
-------------------------------------------------------------------------------
fe80::fc2e:ffff:fe00:0 fe:4e:01:01:00:03 dynamic
3ffe::2020:2001 fe:4e:01:01:00:03 dynamic
. . . snip . . .
-------------------------------------------------------------------------------
Eth-Cfm MEP Configuration Information
-------------------------------------------------------------------------------
Md-index : 1 Direction : Down
Ma-index : 45 Admin : Enabled
MepId : 22 CCM-Enable : Enabled
IfIndex : 35782656 PrimaryVid : 21
Description : (Not Specified)
FngAlarmTime : 0 FngResetTime : 0
FngState : fngReset ControlMep : False
LowestDefectPri : macRemErrXcon HighestDefect : none
Defect Flags : None
Mac Address : fe:ed:01:01:00:04 Collect LMM Stats : disabled
CcmLtmPriority : 7 CcmPaddingSize : 0 octets
CcmTx : 471 CcmSequenceErr : 0
CcmIgnoreTLVs : (Not Specified)
Fault Propagation : useIfStatusTLV FacilityFault : n/a
MA-CcmInterval : 1 MA-CcmHoldTime : 0ms
MA-Primary-Vid : Disabled
Eth-1Dm Threshold : 3(sec) MD-Level : 1
Eth-Ais : Disabled
Eth-Ais Tx defCCM : allDef
Eth-Tst : Disabled
Eth-CSF : Disabled
Redundancy:
MC-LAG State : n/a
LbRxReply : 0 LbRxBadOrder : 0
LbRxBadMsdu : 0 LbTxReply : 0
LbSequence : 1 LbNextSequence : 1
LtRxUnexplained : 0
* indicates that the corresponding row element may have been truncated.
-------------------------------------------------------------------------------
SAP 2/2/1.1.2.1
-------------------------------------------------------------------------------
Service Id : 201
SAP : 2/2/1.1.2.1 Encap : ipcp
Description : Default sap description for service id 201
Admin State : Up Oper State : Up
Flags : None
Multi Svc Site : None
Last Status Change : 01/07/2015 15:08:03
Last Mgmt Change : 01/07/2015 15:07:54
Sub Type : regular
Split Horizon Group: (Not Specified)
Admin MTU : 1600 Oper MTU : 1600
Ingr IP Fltr-Id : n/a Egr IP Fltr-Id : n/a
Ingr Mac Fltr-Id : n/a Egr Mac Fltr-Id : n/a
Ingr IPv6 Fltr-Id : n/a Egr IPv6 Fltr-Id : n/a
qinq-pbit-marking : both
Egr Agg Rate Limit: max
Endpoint : N/A
Limit Unused BW : Disabled
Agg Burst Limit : default
Acct. Pol : None Collect Stats : Disabled
Application Profile: None
Transit Policy : None
Oper Group : (none) Monitor Oper Grp : (none)
Host Lockout Plcy : n/a
Ignore Oper Down : Enabled
Lag Link Map Prof : (none)
-------------------------------------------------------------------------------
Ipipe SAP Configuration Information
-------------------------------------------------------------------------------
Configured CE IPv4 : n/a Discovered CE IPv4: 0.0.0.0
Legacy Fault Notify: False Recvry Timer Rem : 0.0 secs
-------------------------------------------------------------------------------
Ipipe SAP IPv4 ARP Entry Info
-------------------------------------------------------------------------------
No Ipipe SAP IPv4 ARP entries
-------------------------------------------------------------------------------
Ipipe SAP IPv6 Neighbor Entry Info
-------------------------------------------------------------------------------
fe80::13:9295:9ba:5e2 dynamic
. . . snip . . .
show port 2/2/1.1.2.1
===============================================================================
TDM DS0 Chan Group
===============================================================================
Description : DS0GRP
Interface : 2/2/1.1.2.1
TimeSlots : 2-32
Speed : 64 CRC : 16
Admin Status : up Oper Status : up
BER SF Link Down : disabled
Last State Change : 01/07/2015 15:08:09 Chan-Grp IfIndex : 608206967
Configured Address : fe:ee:02:02:00:01
Hardware Address : fe:ee:02:02:00:01
Configured mode : access Encap Type : ipcp
Admin MTU : 1600 Oper MTU : 1600
Scramble : false
Physical Link : yes Bundle Number : none
Idle Cycle Flags : flags Load-balance-algo : Default
Payload Fill Type : n/a Payload Pattern : N/A
Signal Fill Type : n/a Signal Pattern : N/A
Ing. Pool % Rate : 100 Egr. Pool % Rate : 100
Egr. Sched. Pol : N/A
===============================================================================
===============================================================================
Traffic Statistics
===============================================================================
Input Output
-------------------------------------------------------------------------------
Octets 117200 246356
Packets 983 1004
Errors 0 0
===============================================================================
Port Statistics
===============================================================================
Input Output
-------------------------------------------------------------------------------
Packets 983 1004
Discards 0 0
Unknown Proto Discards 0
===============================================================================
show port 2/2/1.1.2.1 ppp
===============================================================================
PPP Protocols for 2/2/1.1.2.1
===============================================================================
Protocol State Last Change Restart Count Last Cleared
-------------------------------------------------------------------------------
lcp opened 01/07/2015 15:08:08 1 01/07/2015 15:07:22
ipcp opened 01/07/2015 15:08:08 1 01/07/2015 15:07:22
mplscp initial 11/30/2014 09:20:08 0 01/07/2015 15:07:22
bcp initial 11/30/2014 09:20:08 0 01/07/2015 15:07:22
osicp initial 11/30/2014 09:20:08 0 01/07/2015 15:07:22
ipv6cp opened 01/07/2015 15:08:20 1 01/07/2015 15:07:22
===============================================================================
===============================================================================
PPP Statistics
===============================================================================
Local Mac address : fe:ee:02:02:00:01 Remote Mac address :
Local Magic Number : 0x7cda9060 Remote Magic Number: 0x23b8f81
Local IPv4 address : 32.32.32.1 Remote IPv4 address: 32.32.32.2
Local IPv6 address : fe80::fc2e:ffff:fe00:0
Remote IPv6 address: fe80::13:9295:9ba:5e2
Line Monitor Method: keepalive
Keepalive statistics
Request interval : 10 Threshold exceeded : 0
Drop Count : 3 In packets : 48
Time to link drop : 00h00m30s Out packets : 48
Last cleared time : 01/07/2015 15:07:22
PPP Header Compression
ACFC : Disabled PFC : Disabled
===============================================================================
show service sap-using
===============================================================================
Service Access Points
===============================================================================
PortId SvcId Ing. Ing. Egr. Egr. Adm Opr
QoS Fltr QoS Fltr
-------------------------------------------------------------------------------
1/1/4:21 201 1 none 1 none Up Up
2/2/1.1.2.1 201 1 none 1 none Up Up
-------------------------------------------------------------------------------
Number of SAPs : 8
The same service is used to demonstrate an Ethernet SAP failure condition propagating fault to the associated PPP connection. In this case an ETH-CCM time out has occurred. Only the changes have been highlighted.
The log events below are specific to the failure type and the protocols involved.
166 2015/01/07 15:18:07.26 UTC MINOR: ETH_CFM #2001 Base
"MEP 1/45/22 highest defect is now defRemoteCCM"
167 2015/01/07 15:18:07.31 UTC MINOR: PPP #2004 Base 2/2/1.ds0grp-1.2.1
"Port 2/2/1.ds0grp-1.2.1 ipcp left 'opened' state"
168 2015/01/07 15:18:07.31 UTC MINOR: PPP #2004 Base 2/2/1.ds0grp-1.2.1
"Port 2/2/1.ds0grp-1.2.1 ipv6cp left 'opened' state"
169 2015/01/07 15:18:07.30 UTC MINOR: PPP #2002 Base 2/2/1.ds0grp-1.2.1
"Port 2/2/1.ds0grp-1.2.1 lcp left 'opened' state"
170 2015/01/07 15:18:07.30 UTC WARNING: SNMP #2004 Base 2/2/1.ds0grp-1.2.1
"Interface 2/2/1.ds0grp-1.2.1 is not operational"
171 2015/01/07 15:18:07.30 UTC MAJOR: SVCMGR #2210 Base
"Processing of an access port state change event is finished and the status of all a
ffected SAPs on port 2/2/1.1.2.1 has been updated."
show service id 201 all
===============================================================================
Service Detailed Information
===============================================================================
Service Id : 201 Vpn Id : 201
Service Type : Ipipe
Name : XYZ Ipipe 201
Description : IPIPE_PPP
Customer Id : 1 Creation Origin : manual
Last Status Change: 01/07/2015 15:07:54
Last Mgmt Change : 01/07/2015 15:07:53
Admin State : Up Oper State : Up
MTU : 1514
Vc Switching : False
SAP Count : 2 SDP Bind Count : 0
CE IPv4 Discovery : Enabled Keep address : Yes
CE IPv6 Discovery : Enabled Stack Cap Sig : Disabled
Eth Legacy Fault Notification
-------------------------------------------------------------------------------
Recovery Timer : 30.0 secs Admin State : inService
-------------------------------------------------------------------------------
ETH-CFM service specifics
-------------------------------------------------------------------------------
Tunnel Faults : ignore
-------------------------------------------------------------------------------
Service Destination Points(SDPs)
-------------------------------------------------------------------------------
No Matching Entries
-------------------------------------------------------------------------------
Service Access Points
-------------------------------------------------------------------------------
-------------------------------------------------------------------------------
SAP 1/1/4:21
-------------------------------------------------------------------------------
Service Id : 201
SAP : 1/1/4:21 Encap : q-tag
Description : Default sap description for service id 201
Admin State : Up Oper State : Up
Flags : OamDownMEPFault
Multi Svc Site : None
Last Status Change : 01/07/2015 15:07:53
Last Mgmt Change : 01/07/2015 15:07:52
Sub Type : regular
Dot1Q Ethertype : 0x8100 QinQ Ethertype : 0x8100
Split Horizon Group: (Not Specified)
Admin MTU : 1518 Oper MTU : 1518
Ingr IP Fltr-Id : n/a Egr IP Fltr-Id : n/a
Ingr Mac Fltr-Id : n/a Egr Mac Fltr-Id : n/a
Ingr IPv6 Fltr-Id : n/a Egr IPv6 Fltr-Id : n/a
qinq-pbit-marking : both
Egr Agg Rate Limit: max
Endpoint : N/A
Q Frame-Based Acct : Disabled Limit Unused BW : Disabled
Agg Burst Limit : default
Acct. Pol : None Collect Stats : Disabled
Application Profile: None
Transit Policy : None
Oper Group : (none) Monitor Oper Grp : (none)
Host Lockout Plcy : n/a
Ignore Oper Down : Disabled
Lag Link Map Prof : (none)
-------------------------------------------------------------------------------
ETH-CFM SAP specifics
-------------------------------------------------------------------------------
Tunnel Faults : n/a AIS : Disabled
MC Prop-Hold-Timer : n/a
Squelch Levels : None
-------------------------------------------------------------------------------
Ipipe SAP Configuration Information
-------------------------------------------------------------------------------
Configured CE IPv4 : n/a Discovered CE IPv4: 32.32.32.1
SAP MAC Address : fe:ed:01:01:00:04 Mac Refresh Inter*: 14400
-------------------------------------------------------------------------------
Ipipe SAP IPv4 ARP Entry Info
-------------------------------------------------------------------------------
32.32.32.1 fe:4e:01:01:00:03 dynamic
-------------------------------------------------------------------------------
Ipipe SAP IPv6 Neighbor Entry Info
-------------------------------------------------------------------------------
fe80::fc2e:ffff:fe00:0 fe:4e:01:01:00:03 dynamic
3ffe::2020:2001 fe:4e:01:01:00:03 dynamic
. . . snip . . .
-------------------------------------------------------------------------------
Eth-Cfm MEP Configuration Information
-------------------------------------------------------------------------------
Md-index : 1 Direction : Down
Ma-index : 45 Admin : Enabled
MepId : 22 CCM-Enable : Enabled
IfIndex : 35782656 PrimaryVid : 21
Description : (Not Specified)
FngAlarmTime : 0 FngResetTime : 0
FngState : fngDefectReported ControlMep : False
LowestDefectPri : macRemErrXcon HighestDefect : defRemoteCCM
Defect Flags : bDefRemoteCCM
Mac Address : fe:ed:01:01:00:04 Collect LMM Stats : disabled
CcmLtmPriority : 7 CcmPaddingSize : 0 octets
CcmTx : 650 CcmSequenceErr : 0
CcmIgnoreTLVs : (Not Specified)
Fault Propagation : useIfStatusTLV FacilityFault : n/a
MA-CcmInterval : 1 MA-CcmHoldTime : 0ms
MA-Primary-Vid : Disabled
Eth-1Dm Threshold : 3(sec) MD-Level : 1
Eth-Ais : Disabled
Eth-Ais Tx defCCM : allDef
Eth-Tst : Disabled
Eth-CSF : Disabled
Redundancy:
MC-LAG State : n/a
LbRxReply : 0 LbRxBadOrder : 0
LbRxBadMsdu : 0 LbTxReply : 0
LbSequence : 1 LbNextSequence : 1
LtRxUnexplained : 0
* indicates that the corresponding row element may have been truncated.
-------------------------------------------------------------------------------
SAP 2/2/1.1.2.1
-------------------------------------------------------------------------------
Service Id : 201
SAP : 2/2/1.1.2.1 Encap : ipcp
Description : Default sap description for service id 201
Admin State : Up Oper State : Up
Flags : PortOperDown
Multi Svc Site : None
Last Status Change : 01/07/2015 15:08:03
Last Mgmt Change : 01/07/2015 15:07:54
Sub Type : regular
Split Horizon Group: (Not Specified)
Admin MTU : 1600 Oper MTU : 1600
Ingr IP Fltr-Id : n/a Egr IP Fltr-Id : n/a
Ingr Mac Fltr-Id : n/a Egr Mac Fltr-Id : n/a
Ingr IPv6 Fltr-Id : n/a Egr IPv6 Fltr-Id : n/a
qinq-pbit-marking : both
Egr Agg Rate Limit: max
Endpoint : N/A
Limit Unused BW : Disabled
Agg Burst Limit : default
Acct. Pol : None Collect Stats : Disabled
Application Profile: None
Transit Policy : None
Oper Group : (none) Monitor Oper Grp : (none)
Host Lockout Plcy : n/a
Ignore Oper Down : Enabled
Lag Link Map Prof : (none)
-------------------------------------------------------------------------------
Ipipe SAP Configuration Information
-------------------------------------------------------------------------------
Configured CE IPv4 : n/a Discovered CE IPv4: 0.0.0.0
Legacy Fault Notify: True Recvry Timer Rem : 0.0 secs
-------------------------------------------------------------------------------
Ipipe SAP IPv4 ARP Entry Info
-------------------------------------------------------------------------------
No Ipipe SAP IPv4 ARP entries
-------------------------------------------------------------------------------
Ipipe SAP IPv6 Neighbor Entry Info
-------------------------------------------------------------------------------
No Ipipe SAP IPv6 Neighbor entries
. . . snip . . .
show port 2/2/1.1.2.1
===============================================================================
TDM DS0 Chan Group
===============================================================================
Description : DS0GRP
Interface : 2/2/1.1.2.1
TimeSlots : 2-32
Speed : 64 CRC : 16
Admin Status : up Oper Status : down
BER SF Link Down : disabled
Last State Change : 01/07/2015 15:18:07 Chan-Grp IfIndex : 608206967
Configured Address : fe:ee:02:02:00:01
Hardware Address : fe:ee:02:02:00:01
Configured mode : access Encap Type : ipcp
Admin MTU : 1600 Oper MTU : 1600
Scramble : false
Physical Link : yes Bundle Number : none
Idle Cycle Flags : flags Load-balance-algo : Default
Payload Fill Type : n/a Payload Pattern : N/A
Signal Fill Type : n/a Signal Pattern : N/A
Ing. Pool % Rate : 100 Egr. Pool % Rate : 100
Egr. Sched. Pol : N/A
===============================================================================
===============================================================================
Traffic Statistics
===============================================================================
Input Output
-------------------------------------------------------------------------------
Octets 117764 247052
Packets 1025 1034
Errors 0 0
===============================================================================
Port Statistics
===============================================================================
Input Output
-------------------------------------------------------------------------------
Packets 1025 1034
Discards 0 0
Unknown Proto Discards 0
===============================================================================
*A:Dut-B# show port 2/2/1.1.2.1 ppp
===============================================================================
PPP Protocols for 2/2/1.1.2.1
===============================================================================
Protocol State Last Change Restart Count Last Cleared
-------------------------------------------------------------------------------
lcp initial 01/07/2015 15:18:07 1 01/07/2015 15:07:22
ipcp initial 01/07/2015 15:18:07 1 01/07/2015 15:07:22
mplscp initial 11/30/2014 09:20:08 0 01/07/2015 15:07:22
bcp initial 11/30/2014 09:20:08 0 01/07/2015 15:07:22
osicp initial 11/30/2014 09:20:08 0 01/07/2015 15:07:22
ipv6cp initial 01/07/2015 15:18:07 1 01/07/2015 15:07:22
===============================================================================
===============================================================================
PPP Statistics
===============================================================================
Local Mac address : fe:ee:02:02:00:01 Remote Mac address :
Local Magic Number : 0x0 Remote Magic Number: 0x0
Local IPv4 address : 0.0.0.0 Remote IPv4 address: 0.0.0.0
Local IPv6 address : ::
Remote IPv6 address: ::
Line Monitor Method: keepalive
Keepalive statistics
Request interval : 10 Threshold exceeded : 0
Drop Count : 3 In packets : 61
Time to link drop : 00h00m30s Out packets : 61
Last cleared time : 01/07/2015 15:07:22
PPP Header Compression
ACFC : Disabled PFC : Disabled
===============================================================================
The following output displays an example when the Ethernet fault condition clears a transitional state occurs.
172 2015/01/07 15:34:33.32 UTC MINOR: ETH_CFM #2001 Base
"MEP 1/45/22 highest defect is now none"
show service id 201 all
===============================================================================
Service Detailed Information
===============================================================================
Service Id : 201 Vpn Id : 201
Service Type : Ipipe
Name : XYZ Ipipe 201
Description : IPIPE_PPP
Customer Id : 1 Creation Origin : manual
Last Status Change: 01/07/2015 15:07:54
Last Mgmt Change : 01/07/2015 15:07:53
Admin State : Up Oper State : Up
MTU : 1514
Vc Switching : False
SAP Count : 2 SDP Bind Count : 0
CE IPv4 Discovery : Enabled Keep address : Yes
CE IPv6 Discovery : Enabled Stack Cap Sig : Disabled
Eth Legacy Fault Notification
-------------------------------------------------------------------------------
Recovery Timer : 30.0 secs Admin State : inService
-------------------------------------------------------------------------------
ETH-CFM service specifics
-------------------------------------------------------------------------------
Tunnel Faults : ignore
-------------------------------------------------------------------------------
Service Destination Points(SDPs)
-------------------------------------------------------------------------------
No Matching Entries
-------------------------------------------------------------------------------
Service Access Points
-------------------------------------------------------------------------------
-------------------------------------------------------------------------------
SAP 1/1/4:21
-------------------------------------------------------------------------------
Service Id : 201
SAP : 1/1/4:21 Encap : q-tag
Description : Default sap description for service id 201
Admin State : Up Oper State : Up
Flags : None
Multi Svc Site : None
Last Status Change : 01/07/2015 15:07:53
Last Mgmt Change : 01/07/2015 15:07:52
Sub Type : regular
Dot1Q Ethertype : 0x8100 QinQ Ethertype : 0x8100
Split Horizon Group: (Not Specified)
Admin MTU : 1518 Oper MTU : 1518
Ingr IP Fltr-Id : n/a Egr IP Fltr-Id : n/a
Ingr Mac Fltr-Id : n/a Egr Mac Fltr-Id : n/a
Ingr IPv6 Fltr-Id : n/a Egr IPv6 Fltr-Id : n/a
qinq-pbit-marking : both
Egr Agg Rate Limit: max
Endpoint : N/A
Q Frame-Based Acct : Disabled Limit Unused BW : Disabled
Agg Burst Limit : default
Acct. Pol : None Collect Stats : Disabled
Application Profile: None
Transit Policy : None
Oper Group : (none) Monitor Oper Grp : (none)
Host Lockout Plcy : n/a
Ignore Oper Down : Disabled
Lag Link Map Prof : (none)
-------------------------------------------------------------------------------
ETH-CFM SAP specifics
-------------------------------------------------------------------------------
Tunnel Faults : n/a AIS : Disabled
MC Prop-Hold-Timer : n/a
Squelch Levels : None
-------------------------------------------------------------------------------
Ipipe SAP Configuration Information
-------------------------------------------------------------------------------
Configured CE IPv4 : n/a Discovered CE IPv4: 32.32.32.1
SAP MAC Address : fe:ed:01:01:00:04 Mac Refresh Inter*: 14400
-------------------------------------------------------------------------------
Ipipe SAP IPv4 ARP Entry Info
-------------------------------------------------------------------------------
32.32.32.1 fe:4e:01:01:00:03 dynamic
-------------------------------------------------------------------------------
Ipipe SAP IPv6 Neighbor Entry Info
-------------------------------------------------------------------------------
fe80::fc2e:ffff:fe00:0 fe:4e:01:01:00:03 dynamic
3ffe::2020:2001 fe:4e:01:01:00:03 dynamic
. . . snip . . .
-------------------------------------------------------------------------------
Eth-Cfm MEP Configuration Information
-------------------------------------------------------------------------------
Md-index : 1 Direction : Down
Ma-index : 45 Admin : Enabled
MepId : 22 CCM-Enable : Enabled
IfIndex : 35782656 PrimaryVid : 21
Description : (Not Specified)
FngAlarmTime : 0 FngResetTime : 0
FngState : fngReset ControlMep : False
LowestDefectPri : macRemErrXcon HighestDefect : none
Defect Flags : None
Mac Address : fe:ed:01:01:00:04 Collect LMM Stats : disabled
CcmLtmPriority : 7 CcmPaddingSize : 0 octets
CcmTx : 1603 CcmSequenceErr : 0
CcmIgnoreTLVs : (Not Specified)
Fault Propagation : useIfStatusTLV FacilityFault : n/a
MA-CcmInterval : 1 MA-CcmHoldTime : 0ms
MA-Primary-Vid : Disabled
Eth-1Dm Threshold : 3(sec) MD-Level : 1
Eth-Ais : Disabled
Eth-Ais Tx defCCM : allDef
Eth-Tst : Disabled
Eth-CSF : Disabled
Redundancy:
MC-LAG State : n/a
LbRxReply : 0 LbRxBadOrder : 0
LbRxBadMsdu : 0 LbTxReply : 0
LbSequence : 1 LbNextSequence : 1
LtRxUnexplained : 0
* indicates that the corresponding row element may have been truncated.
-------------------------------------------------------------------------------
SAP 2/2/1.1.2.1
-------------------------------------------------------------------------------
Service Id : 201
SAP : 2/2/1.1.2.1 Encap : ipcp
Description : Default sap description for service id 201
Admin State : Up Oper State : Up
Flags : PortOperDown
Multi Svc Site : None
Last Status Change : 01/07/2015 15:08:03
Last Mgmt Change : 01/07/2015 15:07:54
Sub Type : regular
Split Horizon Group: (Not Specified)
Admin MTU : 1600 Oper MTU : 1600
Ingr IP Fltr-Id : n/a Egr IP Fltr-Id : n/a
Ingr Mac Fltr-Id : n/a Egr Mac Fltr-Id : n/a
Ingr IPv6 Fltr-Id : n/a Egr IPv6 Fltr-Id : n/a
qinq-pbit-marking : both
Egr Agg Rate Limit: max
Endpoint : N/A
Limit Unused BW : Disabled
Agg Burst Limit : default
Acct. Pol : None Collect Stats : Disabled
Application Profile: None
Transit Policy : None
Oper Group : (none) Monitor Oper Grp : (none)
Host Lockout Plcy : n/a
Ignore Oper Down : Enabled
Lag Link Map Prof : (none)
-------------------------------------------------------------------------------
Ipipe SAP Configuration Information
-------------------------------------------------------------------------------
Configured CE IPv4 : n/a Discovered CE IPv4: 0.0.0.0
Legacy Fault Notify: False Recvry Timer Rem : 28.8 secs
-------------------------------------------------------------------------------
Ipipe SAP IPv4 ARP Entry Info
-------------------------------------------------------------------------------
No Ipipe SAP IPv4 ARP entries
-------------------------------------------------------------------------------
Ipipe SAP IPv6 Neighbor Entry Info
-------------------------------------------------------------------------------
No Ipipe SAP IPv6 Neighbor entries
. . . snip . . .
show port 2/2/1.1.2.1
===============================================================================
TDM DS0 Chan Group
===============================================================================
Description : DS0GRP
Interface : 2/2/1.1.2.1
TimeSlots : 2-32
Speed : 64 CRC : 16
Admin Status : up Oper Status : down
BER SF Link Down : disabled
Last State Change : 01/07/2015 15:18:07 Chan-Grp IfIndex : 608206967
Configured Address : fe:ee:02:02:00:01
Hardware Address : fe:ee:02:02:00:01
Configured mode : access Encap Type : ipcp
Admin MTU : 1600 Oper MTU : 1600
Scramble : false
Physical Link : yes Bundle Number : none
Idle Cycle Flags : flags Load-balance-algo : Default
Payload Fill Type : n/a Payload Pattern : N/A
Signal Fill Type : n/a Signal Pattern : N/A
Ing. Pool % Rate : 100 Egr. Pool % Rate : 100
Egr. Sched. Pol : N/A
===============================================================================
===============================================================================
Traffic Statistics
===============================================================================
Input Output
-------------------------------------------------------------------------------
Octets 119518 247124
Packets 1123 1036
Errors 0 0
===============================================================================
Port Statistics
===============================================================================
Input Output
-------------------------------------------------------------------------------
Packets 1123 1036
Discards 0 0
Unknown Proto Discards 0
===============================================================================
show port 2/2/1.1.2.1 ppp
===============================================================================
PPP Protocols for 2/2/1.1.2.1
===============================================================================
Protocol State Last Change Restart Count Last Cleared
-------------------------------------------------------------------------------
lcp request sent 01/07/2015 15:34:33 1 01/07/2015 15:07:22
ipcp initial 01/07/2015 15:18:07 1 01/07/2015 15:07:22
mplscp initial 11/30/2014 09:20:08 0 01/07/2015 15:07:22
bcp initial 11/30/2014 09:20:08 0 01/07/2015 15:07:22
osicp initial 11/30/2014 09:20:08 0 01/07/2015 15:07:22
ipv6cp initial 01/07/2015 15:18:07 1 01/07/2015 15:07:22
===============================================================================
===============================================================================
PPP Statistics
===============================================================================
Local Mac address : fe:ee:02:02:00:01 Remote Mac address :
Local Magic Number : 0x0 Remote Magic Number: 0x0
Local IPv4 address : 32.32.32.1 Remote IPv4 address: 0.0.0.0
Local IPv6 address : fe80::fc2e:ffff:fe00:0
Remote IPv6 address: ::
Line Monitor Method: keepalive
Keepalive statistics
Request interval : 10 Threshold exceeded : 0
Drop Count : 3 In packets : 61
Time to link drop : 00h00m30s Out packets : 61
Last cleared time : 01/07/2015 15:07:22
PPP Header Compression
ACFC : Disabled PFC : Disabled
===============================================================================
An example of the legacy fault propagation to the associated Ethernet SAP and the remote peer using the ETH-CFM fault propagation, assuming no Ethernet Fault is taking precedence.
173 2015/01/07 15:35:03.31 UTC MINOR: SVCMGR #2203 Base
"Status of SAP 2/2/
1.1.2.1 in service 201 (customer 1) changed to admin=up oper=down flags=PortOperDown
"
show service id 201 all
===============================================================================
Service Detailed Information
===============================================================================
Service Id : 201 Vpn Id : 201
Service Type : Ipipe
Name : XYZ Ipipe 201
Description : IPIPE_PPP
Customer Id : 1 Creation Origin : manual
Last Status Change: 01/07/2015 15:07:54
Last Mgmt Change : 01/07/2015 15:07:53
Admin State : Up Oper State : Up
MTU : 1514
Vc Switching : False
SAP Count : 2 SDP Bind Count : 0
CE IPv4 Discovery : Enabled Keep address : Yes
CE IPv6 Discovery : Enabled Stack Cap Sig : Disabled
Eth Legacy Fault Notification
-------------------------------------------------------------------------------
Recovery Timer : 30.0 secs Admin State : inService
-------------------------------------------------------------------------------
ETH-CFM service specifics
-------------------------------------------------------------------------------
Tunnel Faults : ignore
-------------------------------------------------------------------------------
Service Destination Points(SDPs)
-------------------------------------------------------------------------------
No Matching Entries
-------------------------------------------------------------------------------
Service Access Points
-------------------------------------------------------------------------------
-------------------------------------------------------------------------------
SAP 1/1/4:21
-------------------------------------------------------------------------------
Service Id : 201
SAP : 1/1/4:21 Encap : q-tag
Description : Default sap description for service id 201
Admin State : Up Oper State : Up
Flags : None
Multi Svc Site : None
Last Status Change : 01/07/2015 15:07:53
Last Mgmt Change : 01/07/2015 15:07:52
Sub Type : regular
Dot1Q Ethertype : 0x8100 QinQ Ethertype : 0x8100
Split Horizon Group: (Not Specified)
Admin MTU : 1518 Oper MTU : 1518
Ingr IP Fltr-Id : n/a Egr IP Fltr-Id : n/a
Ingr Mac Fltr-Id : n/a Egr Mac Fltr-Id : n/a
Ingr IPv6 Fltr-Id : n/a Egr IPv6 Fltr-Id : n/a
qinq-pbit-marking : both
Egr Agg Rate Limit: max
Endpoint : N/A
Q Frame-Based Acct : Disabled Limit Unused BW : Disabled
Agg Burst Limit : default
Acct. Pol : None Collect Stats : Disabled
Application Profile: None
Transit Policy : None
Oper Group : (none) Monitor Oper Grp : (none)
Host Lockout Plcy : n/a
Ignore Oper Down : Disabled
Lag Link Map Prof : (none)
-------------------------------------------------------------------------------
ETH-CFM SAP specifics
-------------------------------------------------------------------------------
Tunnel Faults : n/a AIS : Disabled
MC Prop-Hold-Timer : n/a
Squelch Levels : None
-------------------------------------------------------------------------------
Ipipe SAP Configuration Information
-------------------------------------------------------------------------------
Configured CE IPv4 : n/a Discovered CE IPv4: 32.32.32.1
SAP MAC Address : fe:ed:01:01:00:04 Mac Refresh Inter*: 14400
-------------------------------------------------------------------------------
Ipipe SAP IPv4 ARP Entry Info
-------------------------------------------------------------------------------
32.32.32.1 fe:4e:01:01:00:03 dynamic
-------------------------------------------------------------------------------
Ipipe SAP IPv6 Neighbor Entry Info
-------------------------------------------------------------------------------
fe80::fc2e:ffff:fe00:0 fe:4e:01:01:00:03 dynamic
3ffe::2020:2001 fe:4e:01:01:00:03 dynamic
. . . snip . . .
-------------------------------------------------------------------------------
Eth-Cfm MEP Configuration Information
-------------------------------------------------------------------------------
Md-index : 1 Direction : Down
Ma-index : 45 Admin : Enabled
MepId : 22 CCM-Enable : Enabled
IfIndex : 35782656 PrimaryVid : 21
Description : (Not Specified)
FngAlarmTime : 0 FngResetTime : 0
FngState : fngReset ControlMep : False
LowestDefectPri : macRemErrXcon HighestDefect : none
Defect Flags : bDefRDICCM
Mac Address : fe:ed:01:01:00:04 Collect LMM Stats : disabled
CcmLtmPriority : 7 CcmPaddingSize : 0 octets
CcmTx : 1690 CcmSequenceErr : 0
CcmIgnoreTLVs : (Not Specified)
Fault Propagation : useIfStatusTLV FacilityFault : n/a
MA-CcmInterval : 1 MA-CcmHoldTime : 0ms
MA-Primary-Vid : Disabled
Eth-1Dm Threshold : 3(sec) MD-Level : 1
Eth-Ais : Disabled
Eth-Ais Tx defCCM : allDef
Eth-Tst : Disabled
Eth-CSF : Disabled
Redundancy:
MC-LAG State : n/a
LbRxReply : 0 LbRxBadOrder : 0
LbRxBadMsdu : 0 LbTxReply : 0
LbSequence : 1 LbNextSequence : 1
LtRxUnexplained : 0
* indicates that the corresponding row element may have been truncated.
-------------------------------------------------------------------------------
SAP 2/2/1.1.2.1
-------------------------------------------------------------------------------
Service Id : 201
SAP : 2/2/1.1.2.1 Encap : ipcp
Description : Default sap description for service id 201
Admin State : Up Oper State : Down
Flags : PortOperDown
Multi Svc Site : None
Last Status Change : 01/07/2015 15:35:03
Last Mgmt Change : 01/07/2015 15:07:54
Sub Type : regular
Split Horizon Group: (Not Specified)
Admin MTU : 1600 Oper MTU : 1600
Ingr IP Fltr-Id : n/a Egr IP Fltr-Id : n/a
Ingr Mac Fltr-Id : n/a Egr Mac Fltr-Id : n/a
Ingr IPv6 Fltr-Id : n/a Egr IPv6 Fltr-Id : n/a
qinq-pbit-marking : both
Egr Agg Rate Limit: max
Endpoint : N/A
Limit Unused BW : Disabled
Agg Burst Limit : default
Acct. Pol : None Collect Stats : Disabled
Application Profile: None
Transit Policy : None
Oper Group : (none) Monitor Oper Grp : (none)
Host Lockout Plcy : n/a
Ignore Oper Down : Enabled
Lag Link Map Prof : (none)
-------------------------------------------------------------------------------
Ipipe SAP Configuration Information
-------------------------------------------------------------------------------
Configured CE IPv4 : n/a Discovered CE IPv4: 0.0.0.0
Legacy Fault Notify: False Recvry Timer Rem : 0.0 secs
-------------------------------------------------------------------------------
Ipipe SAP IPv4 ARP Entry Info
-------------------------------------------------------------------------------
No Ipipe SAP IPv4 ARP entries
-------------------------------------------------------------------------------
Ipipe SAP IPv6 Neighbor Entry Info
-------------------------------------------------------------------------------
No Ipipe SAP IPv6 Neighbor entries
. . . snip . . .
show port 2/2/1.1.2.1
===============================================================================
TDM DS0 Chan Group
===============================================================================
Description : DS0GRP
Interface : 2/2/1.1.2.1
TimeSlots : 2-32
Speed : 64 CRC : 16
Admin Status : up Oper Status : down
BER SF Link Down : disabled
Last State Change : 01/07/2015 15:18:07 Chan-Grp IfIndex : 608206967
Configured Address : fe:ee:02:02:00:01
Hardware Address : fe:ee:02:02:00:01
Configured mode : access Encap Type : ipcp
Admin MTU : 1600 Oper MTU : 1600
Scramble : false
Physical Link : yes Bundle Number : none
Idle Cycle Flags : flags Load-balance-algo : Default
Payload Fill Type : n/a Payload Pattern : N/A
Signal Fill Type : n/a Signal Pattern : N/A
Ing. Pool % Rate : 100 Egr. Pool % Rate : 100
Egr. Sched. Pol : N/A
===============================================================================
===============================================================================
Traffic Statistics
===============================================================================
Input Output
-------------------------------------------------------------------------------
Octets 119518 248132
Packets 1123 1064
Errors 0 0
===============================================================================
Port Statistics
===============================================================================
Input Output
-------------------------------------------------------------------------------
Packets 1123 1064
Discards 0 0
Unknown Proto Discards 0
===============================================================================
show port 2/2/1.1.2.1 ppp
===============================================================================
PPP Protocols for 2/2/1.1.2.1
===============================================================================
Protocol State Last Change Restart Count Last Cleared
-------------------------------------------------------------------------------
lcp request sent 01/07/2015 15:36:05 1 01/07/2015 15:07:22
ipcp initial 01/07/2015 15:18:07 1 01/07/2015 15:07:22
mplscp initial 11/30/2014 09:20:08 0 01/07/2015 15:07:22
bcp initial 11/30/2014 09:20:08 0 01/07/2015 15:07:22
osicp initial 11/30/2014 09:20:08 0 01/07/2015 15:07:22
ipv6cp initial 01/07/2015 15:18:07 1 01/07/2015 15:07:22
===============================================================================
===============================================================================
PPP Statistics
===============================================================================
Local Mac address : fe:ee:02:02:00:01 Remote Mac address :
Local Magic Number : 0x0 Remote Magic Number: 0x0
Local IPv4 address : 32.32.32.1 Remote IPv4 address: 0.0.0.0
Local IPv6 address : fe80::fc2e:ffff:fe00:0
Remote IPv6 address: ::
Line Monitor Method: keepalive
Keepalive statistics
Request interval : 10 Threshold exceeded : 0
Drop Count : 3 In packets : 61
Time to link drop : 00h00m30s Out packets : 61
Last cleared time : 01/07/2015 15:07:22
PPP Header Compression
ACFC : Disabled PFC : Disabled
===============================================================================
This feature is only supported for an Ipipe service that has a single legacy connection with an encap-type PPP, MLPPP or Cisco-HDLC and an Ethernet SAP. No other combinations are supported. Deployments using APS cannot use this fault propagation functionality.
The propagation of fault is based on the interaction of a number of resources and software functions. This means that propagation and recovery vary based on the type of failure, the scale of the failure, the legacy protocol, the system overhead at the time of the action, and other interactions.
Before maintenance operations are performed the operation should be aware of the operational state of the service and any fault propagation state. Admin legacy port state down conditions do not cause fault propagation, it is the operational port state that conveys fault. During a Major ISSU operation, legacy faults are cleared and not propagated toward the Ethernet network. To prevent this clearing of faults, the operator may consider shutting down the Ethernet port or shutdown the ETH-CFM MEPs to cause a timeout upstream.