7705 SAR R5.0 Configuration Note
Introduction:
The Ipipe service provides a layer 2 IP-VPN architecture to provide point-to-point connections that can transport IP traffic with different link layer technologies. Ipipe enables both CEs appear to be on the same IP subnet. All packets received on one SAP of the Ipipe will be forwarded to the other SAP. No IP routing of customer packets occurs. Ipipe enables service interworking between different link layer technologies.
This document will discuss the interconnection of cHDLC network with Ethernet network using Ipipe service.
Setup:
Prerequisites:
- MDA/Ports are configured
- IGP/static routing/MPLS or GRE are configured
- SDPs are configured (The transport tunnels used for this setup is LDP)
Configuration:
On the SDI cards, cHDLC encapsulation is only supported for V.35 and x.21 serial ports. cHDLC encapsulation is not supported for RS232 for 5.0R4 release.
The following will show how to configure V.35 serial port with cHDLC encapsulation:
A:SAR18-141# configure port 1/6/1
A:SAR18-141>config>port# info
----------------------------------------------
serial
v35
channel-group 1
encap-type cisco-hdlc
cisco-hdlc
exit
no shutdown
exit
no shutdown
exit
exit
no shutdown
----------------------------------------------
A:SAR18-141>config>port#
Next, the service has to be configured on the nodes. Since this is Interworking between different link layer technologies (CE1 with SDI V.35 Serial link and CE2 with Ethernet link), Ipipe must be used for the CE’s to communicate between one another. The service configuration is shown below:
A:SAR18-141# configure service ipipe 144
A:SAR18-141>config>service>ipipe# info
----------------------------------------------
sap 1/6/1.1 create
ce-address 10.10.139.1
exit
spoke-sdp 1:1 create
ce-address 10.10.139.2
exit
no shutdown
----------------------------------------------
A:SAR18-141>config>service>ipipe#
A:SAR18-133# configure service ipipe 133
A:SAR18-133>config>service>ipipe# info
----------------------------------------------
sap 1/4/2 create
ce-address 10.10.139.2
exit
spoke-sdp 1:1 create
ce-address 10.10.139.1
exit
no shutdown
----------------------------------------------
A:SAR18-133>config>service>ipipe#
Verification and Troubleshooting:
Verifying that Layer 2 links are up on node 141:
A:SAR18-141# show port 1/6/1.1
===============================================================================
Serial DS0 Chan Group
===============================================================================
Description : DS0GRP
Interface : 1/6/1.1
CRC : 16
Admin Status : up Oper Status : up
Last State Change : 11/01/2008 20:57:58 Chan-Grp IfIndex : 583041085
Configured Mode : access Encap Type : cisco-hdlc
Admin MTU : 1514 Oper MTU : 1514
Physical Link : Yes Bundle Number : none
Idle Cycle Flags : flags
Payload Fill Type : n/a Payload Pattern : n/a
===============================================================================
===============================================================================
Traffic Statistics
===============================================================================
Input Output
-------------------------------------------------------------------------------
Octets 146128 136732
Packets 6027 6146
Errors 0 0
===============================================================================
Port Statistics
===============================================================================
Input Output
-------------------------------------------------------------------------------
Packets 6027 6146
Discards 0 0
Unknown Proto Discards 0
===============================================================================
A:SAR18-141# show port 1/6/1.1 cisco-hdlc
===============================================================================
Cisco HDLC
===============================================================================
Link Status : Up Cisco HDLC Status : In service
Keep Alive Interval : 10 seconds Up Count : 1
Down Count : 3
Packets In : 6021 Packets Out : 6140
Octets In : 156546 Octets Out : 122800
Discarded Packets In : 0 Discarded Packets Out : 0
A:SAR18-141# show service id 141 base
===============================================================================
Service Basic Information
===============================================================================
Service Id : 141
Service Type : Ipipe
Description : (Not Specified)
Customer Id : 1
Last Status Change: 11/01/2008 20:57:58
Last Mgmt Change : 11/01/2008 20:11:44
Admin State : Up Oper State : Up
MTU : 1500
Vc Switching : False
SAP Count : 1 SDP Bind Count : 1
CE Addr Discovery : disabled
-------------------------------------------------------------------------------
Service Access & Destination Points
-------------------------------------------------------------------------------
Identifier Type AdmMTU OprMTU Adm Opr
-------------------------------------------------------------------------------
sap:1/6/1.1 cisco-hdlc 1514 1514 Up Up
sdp:1:1 S(10.10.10.133) n/a 0 1550 Up Up
===============================================================================
The output above shows that the port is up and the encapsulation type is cHDLC. The CRC size is 16 bits, this is the default value. It could be set to 32 bits. The CRC size has to match between the port and the CE connected to that port for the port to come up.
In the outputs below, there are no output entries for the first show command since this is a V.35 serial port, and it doesn’t have a MAC address. However, in the for node 133, the ARP entries are populated with a learned MAC address because SAP 1/4/2 is an Ethernet link:
A:SAR18-141# show service id 141 sap 1/6/1.1
===============================================================================
Service Access Points(SAP)
===============================================================================
Service Id : 141
SAP : 1/6/1.1 Encap : cisco-hdlc
Description : (Not Specified)
Admin State : Up Oper State : Up
Flags : None
Multi Svc Site : None
Last Status Change : 11/01/2008 20:57:58
Last Mgmt Change : 11/01/2008 20:11:23
-------------------------------------------------------------------------------
Ipipe SAP Configuration Information
-------------------------------------------------------------------------------
Ce IP Address : 10.10.139.1
Configured CE IP : 10.10.139.1 Discovered CE IP : n/a
-------------------------------------------------------------------------------
Ipipe SAP ARP Entry Info
-------------------------------------------------------------------------------
No Ipipe SAP ARP entries
===============================================================================
A:SAR18-133# show service id 133 sap 1/4/2
===============================================================================
Service Access Points(SAP)
===============================================================================
Service Id : 133
SAP : 1/4/2 Encap : null
Description : (Not Specified)
Admin State : Up Oper State : Up
Flags : None
Multi Svc Site : None
Last Status Change : 05/17/2012 20:55:06
Last Mgmt Change : 05/17/2012 19:51:52
-------------------------------------------------------------------------------
Ipipe SAP Configuration Information
-------------------------------------------------------------------------------
Ce IP Address : 10.10.139.2
Configured CE IP : 10.10.139.2 Discovered CE IP : n/a
SAP MAC Address : 00:25:ba:2e:f4:3b Mac Refresh Inter*: 14400
-------------------------------------------------------------------------------
Ipipe SAP ARP Entry Info
-------------------------------------------------------------------------------
10.10.139.2 00:21:05:6e:4c:d5 dynamic 03h43m02s
===============================================================================
The following displays the SDP status and binding of the remote CE:
*A:SAR18-141# show service id 141 sdp detail
===============================================================================
Services: Service Destination Points Details
===============================================================================
-------------------------------------------------------------------------------
Sdp Id 1:1 -(10.10.10.133)
-------------------------------------------------------------------------------
Description : (Not Specified)
SDP Id : 1:1 Type : Spoke
Split Horiz Grp : (Not Specified)
VC Type : Ipipe VC Tag : 0
Admin Path MTU : 0 Oper Path MTU : 1550
Far End : 10.10.10.133 Delivery : LDP
Admin State : Up Oper State : Up
Acct. Pol : None Collect Stats : Disabled
Ingress Label : 131069 Egress Label : 131070
Ing mac Fltr : n/a Egr mac Fltr : n/a
Ing ip Fltr : n/a Egr ip Fltr : n/a
Admin ControlWord : Not Preferred Oper ControlWord : False
Admin BW(Kbps) : 0 Oper BW(Kbps) : 0
Last Status Change : 11/01/2008 20:13:17 Signaling : TLDP
Last Mgmt Change : 11/01/2008 20:11:35
Endpoint : N/A Precedence : 4
Class Fwding State : Down
Flags : None
Peer Pw Bits : None
Peer Fault Ip : None
Peer Vccv CV Bits : lspPing
Peer Vccv CC Bits : mplsRouterAlertLabel
KeepAlive Information :
Admin State : Disabled Oper State : Disabled
Hello Time : 10 Hello Msg Len : 0
Max Drop Count : 3 Hold Down Time : 10
Statistics :
I. Fwd. Pkts. : 20 I. Dro. Pkts. : 0
I. Fwd. Octs. : 2280 I. Dro. Octs. : 0
E. Fwd. Pkts. : 20 E. Fwd. Octets : 2280
-------------------------------------------------------------------------------
IPIPE Service Destination Point specifics
-------------------------------------------------------------------------------
Configured CE IP Addr : 10.10.139.2 Peer CE IP Addr : n/a
-------------------------------------------------------------------------------
Number of SDPs : 1
-------------------------------------------------------------------------------
===============================================================================