Cisco ASR 9000 Series Command Reference Manual page 1105

Traffic Mirroring Commands on the Cisco ASR 9000 Series Router
monitor-session interface configuration command or dynamic template configuration command to associate
this session with a specific source interface. For BNG sessions, the subscriber is attached to the monitor
session, only when the dynamic template is applied to the subscriber. When the session is associated, all
specified traffic on the interface is then replicated to the destination location defined in the monitor session
configuration.
The monitor-session interface configuration command also enters monitor session configuration mode for
you to configure additional features of the mirroring session.
If a physical interface is configured for Layer 3, then the traffic mirroring session can be associated on physical
interfaces. Example:
interface TenGigE0/1/0/0
ipv4 address 10.0.0.1 255.255.255.0
If a physical interface has sub-interfaces configured for Layer 3, then the traffic mirroring session must be
associated on each sub-interface. Example:
interface TenGigE0/1/0/1.601
ipv4 address 10.0.1.1 255.255.255.0
encapsulation dot1q 601
For more information about monitoring a session, see Configuring Traffic Monitoring chapter in Cisco ASR
9000 Series Aggregation Services Router Interface and Hardware Component Configuration Guide.
Task ID
Task ID
interface
config-services
Examples This example shows how to enter monitor session configuration mode:
RP/0/RSP0/CPU0:router# configure
RP/0/RSP0/CPU0:router(config)# interface gigabitethernet0/0/0/11
RP/0/RSP0/CPU0:router(config-if)# l2transport
RP/0/RSP0/CPU0:router(config-if-l2)# monitor-session mon1
RP/0/RSP0/CPU0:router(config-if-mon)#
This example shows how to configure monitor-session command in the dynamic-template configuration
mode for BNG:
RP/0/RSP0/CPU0:router# configure
RP/0/RSP0/CPU0:router(config)# dynamic-template type ppp ppp_template
RP/0/RSP0/CPU0:router(config-dynamic-template-type)# monitor-session mon1 direction rx-only
RP/0/RSP0/CPU0:router(config-dynamic-template-type)# acl
RP/0/RSP0/CPU0:router(config-dynamic-template-type)# mirror first 100
Related Commands
Command
monitor-session, on page 1083
Cisco ASR 9000 Series Aggregation Services Router Interface and Hardware Component Command Reference,
Operations
read, write
read, write
Description
Defines a traffic mirroring session and enter monitor session
configuration mode.
monitor-session (interface)
Release 5.3.x
1085