dhcp
config>service>ies>interface
7210 SAS-K 2F6C4T and 7210 SAS-K 3SFP+ 8C
Commands in this context configure DHCP parameters.
[no] option
config>service>ies>if>dhcp
7210 SAS-K 2F6C4T and 7210 SAS-K 3SFP+ 8C
This command enables DHCP Option 82 (Relay Agent Information Option) parameters processing and enables the context for configuring Option 82 suboptions.
The no form of this command reverts the system to the default values.
no option
action [dhcp-action] {replace | drop | keep}
no action
config>service>ies>if>dhcp>option
7210 SAS-K 2F6C4T and 7210 SAS-K 3SFP+ 8C
This command configures the Relay Agent Information Option (Option 82) processing.
The no form of this command reverts to the default value.
the default is to keep the existing information intact
Specifies the DHCP option action.
Keyword to specify that, in the upstream direction (from the user), the Option 82 field from the router is inserted in the packet (overwriting any existing Option 82 field). In the downstream direction (toward the user) the Option 82 field is stripped (in accordance with RFC 3046).
Keyword to specify that the DHCP packet is dropped if an Option 82 field is present, and a counter is incremented.
Keyword to specify that existing information is kept in the packet and the router does not add any additional information. In the downstream direction, the Option 82 field is not stripped and is sent on toward the client.
The behavior is slightly different in case of Vendor Specific Options (VSOs). When the keep parameter is specified, the router inserts its own VSO into the Option 82 field. This occurs only when the incoming message already has an Option 82 field.
If no Option 82 field is present, the router does not create the Option 82 field. In this in that case, no VSO is added to the message.
gi-address ip-address [src-ip-addr]
no gi-address
config>service>ies>if>dhcp
7210 SAS-K 2F6C4T and 7210 SAS-K 3SFP+ 8C
This command configures the gateway interface address for the DHCP relay. A subscriber interface can include multiple group interfaces with multiple SAPs. The GI address is needed when the router functions as a DHCP relay to distinguish between the different subscriber interfaces and potentially between the group interfaces defined.
By default, the GI address used in the relayed DHCP packet is the primary IP address of a normal IES interface. Specifying the GI address allows the user to choose a secondary address.
no gi-address
Specifies the host IP address to be used for DHCP relay packets.
Keyword that specifies the source IP address to be used for DHCP relay packets.
circuit-id [ascii-tuple | ifindex | sap-id | vlan-ascii-tuple]
no circuit-id
config>service>ies>if>dhcp>option
7210 SAS-K 2F6C4T and 7210 SAS-K 3SFP+ 8C
This command configures the router to send an ASCII-encoded tuple in the circuit-id suboption of the DHCP packet.
To send a tuple in the circuit ID, the action replace command must be configured in the same context.
If disabled, the circuit-id suboption of the DHCP packet will be left empty.
The no form of this command reverts to the default value.
circuit-id
Specifies that the ASCII-encoded concatenated tuple will be used, which consists of the access-node-identifier, service-id, and interface-name, separated by ‟|”.
Specifies that the interface index will be used. The If Index of a router interface can be displayed using the show router interface detail command.
Specifies that the SAP identifier will be used.
Specifies that the format will include VLAN-id and dot1p bits in addition to what is included in ascii-tuple already. The format is supported on dot1q-encapsulated ports only. Therefore, when the Option 82 bits are stripped, dot1p bits will be copied to the Ethernet header of an outgoing packet.
[no] remote-id [mac | string string]
config>service>ies>if>dhcp>option
7210 SAS-K 2F6C4T and 7210 SAS-K 3SFP+ 8C
This command specifies what information goes into the remote ID suboption in the DHCP relay packet.
If disabled, the remote-id suboption of the DHCP packet will be left empty.
The no form of this command reverts to the default value.
no remote-id
Keyword that specifies the MAC address of the remote end is encoded in the suboption.
Specifies the remote ID.
[no] vendor-specific-option
config>service>ies>if>dhcp>option
7210 SAS-K 2F6C4T and 7210 SAS-K 3SFP+ 8C
This command configures the vendor-specific suboption of the DHCP relay packet.
[no] client-mac-address
config>service>ies>if>dhcp>option>vendor
7210 SAS-K 2F6C4T and 7210 SAS-K 3SFP+ 8C
This command enables the sending of the MAC address in the vendor-specific suboption of the DHCP relay packet.
The no form of this command disables the sending of the MAC address in the vendor-specific suboption of the DHCP relay packet.
[no] pool-name
config>service>ies>if>dhcp>option>vendor
7210 SAS-K 2F6C4T and 7210 SAS-K 3SFP+ 8C
This command sends the pool name in the vendor-specific suboption of the DHCP relay packet.
The no form of this command disables the sending.
[no] sap-id
config>service>ies>if>dhcp>option>vendor
7210 SAS-K 2F6C4T and 7210 SAS-K 3SFP+ 8C
This command enables the sending of the SAP ID in the vendor-specific suboption of the DHCP relay packet.
The no form of this command disables the sending of the SAP ID in the vendor-specific suboption of the DHCP relay packet.
[no] service-id
config>service>ies>if>dhcp>option>vendor
7210 SAS-K 2F6C4T and 7210 SAS-K 3SFP+ 8C
This command enables the sending of the service ID in the vendor-specific suboption of the DHCP relay packet.
The no form of this command disables the sending of the service ID in the vendor-specific suboption of the DHCP relay packet.
[no] string text
config>service>ies>if>dhcp>option>vendor
7210 SAS-K 2F6C4T and 7210 SAS-K 3SFP+ 8C
This command specifies the string in the vendor-specific suboption of the DHCP relay packet.
The no form of this command reverts to the default value.
Specifies a string that can be any combination of ASCII characters, up to 32 characters. If spaces are used in the string, enclose the entire string in quotation marks (‟ ”).
[no] system-id
config>service>ies>if>dhcp>option>vendor
7210 SAS-K 2F6C4T and 7210 SAS-K 3SFP+ 8C
This command specifies whether the system ID is encoded in the vendor-specific suboption of Option 82.
relay-plain-bootp
no relay-plain-bootp
config>service>ies>if>dhcp
7210 SAS-K 2F6C4T and 7210 SAS-K 3SFP+ 8C
This command enables the relaying of plain BOOTP packets.
The no form of this command disables the relaying of plain BOOTP packets.
server server1 [server2...(up to 8 max)]
config>service>ies>if>dhcp
7210 SAS-K 2F6C4T and 7210 SAS-K 3SFP+ 8C
This command specifies a list of servers where requests will be forwarded. The list of servers can be entered as either IP addresses or fully qualified domain names. There must be at least one server specified for DHCP relay to work. If there are multiple servers, the request is forwarded to all of the servers in the list.
A maximum of 8 DHCP servers can be configured.
no server
Specifies the DHCP server IP address.
[no] trusted
config>service>ies>if>dhcp
7210 SAS-K 2F6C4T and 7210 SAS-K 3SFP+ 8C
This command enables relaying of untrusted packets.
The no form of this command disables the relay.
not enabled
qos policy-id
no qos
config>service>ies>if>sap>egress
7210 SAS-K 2F6C4T and 7210 SAS-K 3SFP+ 8C
This command associates a Quality of Service (QoS) policy with an ingress SAP or IP interface.
QoS egress policies are important for the enforcement of SLA agreements. The policy ID must be defined before associating the policy with a SAP. If the policy-id does not exist, an error is returned.
The qos command is used to associate ingress policies. The qos command only allows egress policies to be associated on SAP egress. Attempts to associate a QoS policy of the wrong type returns an error.
Only one egress QoS policy can be associated with a SAP at one time. Attempts to associate a second QoS policy of a specific type returns an error.
By default, if no specific QoS policy is associated with the SAP for egress, the default QoS policy is used.
The no form of this command removes the QoS policy association from the SAP, and the QoS policy reverts to the default value.
Specifies the egress policy ID to associate with SAP on egress. The policy ID must already exist.
agg-shaper-rate agg-rate
no agg-shaper-rate
config>service>ies>if>sap>ingress
7210 SAS-K 2F6C4T and 7210 SAS-K 3SFP+ 8C
This command specifies the aggregate rate for the SAP shaper. The aggregate SAP shaper is available to limit only the unicast traffic and the BUM traffic across all the FCs of the SAP configured to use ingress queues. Specify the CIR rate and the PIR rate. Users must not oversubscribe the total bandwidth available for use by ingress queues.
The no form of this command disables the use of the SAP aggregate rate shaper. That is, the SAP can use up the maximum bandwidth available.
no agg-shaper-rate
Specifies the rate in kilobits per second.
agg-shaper-rate agg-rate
no agg-shaper-rate
config>service>ies>if>sap>egress
7210 SAS-K 2F6C4T and 7210 SAS-K 3SFP+ 8C
This command specifies the aggregate rate for the SAP shaper. The aggregate SAP shaper is available to limit only the unicast traffic and the BUM traffic across all the FCs of the SAP configured to use ingress queues. Specify the CIR rate and the PIR rate. Users must not oversubscribe the total bandwidth available for use by ingress queues.
The no form of this command disables the use of SAP aggregate rate shaper. That is, the SAP can use up the maximum bandwidth available.
no agg-shaper-rate
Specifies the rate in kilobits per second.
aggregate-meter-rate rate-in-kbps [burst burst-in-kbits]
no aggregate-meter-rate
config>service>ies>if>sap>ingress
7210 SAS-K 2F6C4T and 7210 SAS-K 3SFP+ 8C
This command configures the access SAP ingress aggregate policer. The rate of the SAP ingress aggregate policer must be specified. Users can optionally specify the burst size for the SAP aggregate policer. The aggregate policer monitors the ingress traffic on different FCs using policers to rate-limit the flow and determines the final disposition of the packet. The packet is either forwarded to an identified profile or dropped.
The sum of CIR of the individual FCs configured under the SAP cannot exceed the PIR rate configured for the SAP. Although the 7210 SAS software does not block this configuration, it is not recommended.
The queued traffic flows are not limited by the aggregate meter. That is, only metered flows can use the aggregate meter. Queued flows can use only aggregate shaper.
The following table lists the final disposition of the packet based on the operating rate of the per-FC policer and the per-SAP aggregate policer.
Per FC meter operating rate |
Per FC assigned color |
SAP aggregate meter operating rate |
Final packet color |
|---|---|---|---|
Within CIR |
Green |
Within PIR |
Green or In-profile |
Within CIR |
Green |
Above PIR |
Red and Dropped |
Above CIR, Within PIR |
Yellow |
Within PIR |
Yellow or Out-of-Profile |
Above CIR, Within PIR |
Yellow |
Above PIR |
Red or Dropped |
Above PIR |
Red |
Within PIR |
Red or Dropped |
Above PIR |
Red |
Above PIR |
Red or Dropped |
The SAP ingress meter counters increment the packet or octet counts based on the final disposition of the packet.
The no form of this command removes the aggregate policer from use.
no aggregate-meter-rate
Specifies the rate in kilobits per second.
Specifies the burst size for the policer in kilobits. The burst size cannot be configured without configuring the rate.
qos policy-id
no qos
config>service>ies>if>sap>ingress
7210 SAS-K 2F6C4T and 7210 SAS-K 3SFP+ 8C
This command associates a QoS policy with an ingress SAP or IP interface.
QoS ingress policies are important for the enforcement of SLA agreements. The policy ID must be defined before associating the policy with a SAP. If the policy-id does not exist, an error is returned.
The qos command is used to associate ingress policies. The qos command only allows ingress policies to be associated on SAP ingress. Attempts to associate a QoS policy of the wrong type returns an error.
Only one ingress QoS policy can be associated with a SAP at one time. Attempts to associate a second QoS policy of a specific type returns an error.
By default, if no specific QoS policy is associated with the SAP for ingress, the default QoS policy is used.
The no form of this command removes the QoS policy association from the SAP, and the QoS policy reverts to the default value.
Specifies the ingress policy ID to associate with SAP on ingress. The policy ID must already exist.
[no] local-proxy-arp
config>service>ies>if
7210 SAS-K 2F6C4T and 7210 SAS-K 3SFP+ 8C
This command enables local proxy ARP. When local proxy ARP is enabled on an IP interface, the system responds to all ARP requests for IP addresses belonging to the subnet with its own MAC address, and therefore will become the forwarding point for all traffic between hosts in that subnet. When the local-proxy-arp command is enabled, ICMP redirects on the ports associated with the service are automatically blocked.
no local-proxy-arp
local-dhcp-server server-name [create]
no local-dhcp-server server-name
config>service>ies>if
7210 SAS-K 2F6C4T and 7210 SAS-K 3SFP+ 8C
This command configures a local DHCP server. A local DHCP server can serve multiple interfaces but is limited to the routing context in which it was created.
Specifies the name of local DHCP server.
Keyword used to create the server name. The create keyword requirement can be enabled or disabled in the environment>create context.
[no] loopback
config>service>ies>if
7210 SAS-K 2F6C4T and 7210 SAS-K 3SFP+ 8C
This command specifies that the interface is a loopback interface that has no associated physical interface. As a result, the associated IES interface cannot be bound to a SAP.
You can configure an IES interface as a loopback interface by issuing the loopback command instead of the sap command. The loopback flag cannot be set on an interface where a SAP is already defined, and a SAP cannot be defined on a loopback interface.
ip-mtu octets
no ip-mtu
config>service>ies>if
7210 SAS-K 2F6C4T and 7210 SAS-K 3SFP+ 8C
This command configures the IP maximum transmit unit (MTU) (packet) for this interface.
Because this connects a Layer 2 to a Layer 3 service, this parameter can be adjusted under the IES interface.
The MTU that is advertised from the IES size is the following:
MINIMUM ((SdpOperPathMtu - EtherHeaderSize), (Configured ip-mtu))
By default (for Ethernet network interface) if no ip-mtu is configured, it is (1568 - 14) = 1554.
The no form of this command reverts to the default value.
no ip-mtu