Common Configuration Tasks
Page 1324 7750 SR OS Services Guide
Configuring a Local Mirror Service
To configure a local mirror service, the source and destinations must be located on the same router.
Note that local mirror source and mirror destination components must be configured under the
same service ID context.
The
mirror-source commands are used as traffic selection criteria to identify traffic to be
mirrored at the source. For example, use the
port port {port-id|lag lag-id}
{[egress][ingress]}
and ip-filter ip-filter-id entry entry-id [entry-id
…]
commands to capture (mirror) traffic that matches specific IP filter entry criteria which is
ingressing and egressing a specific port. A filter must be applied to the SAP/interface if only
certain packets are to be mirrored.
Use the CLI syntax to configure one or more mirror source parameters:
The
mirror-dest commands are used to specify where the mirrored traffic is to be sent, the
forwarding class, and the size of the packet. Use the following CLI syntax to configure mirror
destination parameters:
CLI Syntax: config>mirror
mirror-dest service-id [type {ether|frame-relay|ppp|atm-
sdu}]
description string
fc fc-name
sap sap-id
slice-size bytes
no shutdown
CLI Syntax: debug# mirror-source service-id
ip-filter ip-filter-id entry entry-id [entry-id …]
ingress-label label [label …]
mac-filter mac-filter-id entry entry-id [entry-id …]
port {port-id|lag lag-id} {[egress][ingress]}
sap sap-id {[egress][ingress]}
no shutdown
The following output displays an example of a local mirrored service. On ALA-A, mirror service
103 is mirroring egress and ingress traffic matching IP filter 2, entry 1, on port 2/1/24 and sending
the mirrored packets to SAP 2/1/25.
Example: *A:ALA-A>config>mirror# mirror-dest 103 create
config>mirror>mirror-dest$ sap 2/1/25:0 create
config>mirror>mirror-dest>sap# exit
config>mirror>mirror-dest# no shutdown
config>mirror>mirror-dest# exit all
debug>mirror-source 103
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