Users Guide

Changes to Default Behavior
• Rate-limiting ïs no longer done for ERSPAN traffic.
• Same port can be configured as both source and destination in an ERSPAN session.
• TTL and ToS values can be configured in IP header of ERSPAN traffic.
Configuration steps for ERPM
To configure an ERPM session:
Table 49. Configuration steps for ERPM
Step Command Purpose
1 configure terminal
Enter global configuration mode.
2
monitor session <id> type erpm Specify a session ID and ERPM as the type of
monitoring session, and enter Monitoring-Session
configuration mode. The session number needs to be
unique and not already defined.
3 source { interface | range } direction {rx | tx | both}
Specify the source port or range of ports. Specify the
ingress (rx), egress (tx), or both ingress and egress
traffic to be monitored. You can enter mulitple source
statements in an ERPM monitoring session
4
erpm source-ip <id> dest-ip <id> Specify the source IP address and the destination IP
address to which encapsulated mirrored traffic is sent.
5
<no> flow-based enable ERPM to be performed on a flow-by-flow basis or if
you configure a VLAN source interface. Enter no flow-
based disable to disable flow-based ERPM.
6
no disable
Enter the no disable command to activate the ERPM
session..
The following example shows a sample ERPM configuration .
Dell(conf)#monitor session 0 type erpm
Dell(conf-mon-sess-0)#source gigabitethernet 1/9 direction rx
Dell(conf-mon-sess-0)#source port-channel 1 direction tx
Dell(conf-mon-sess-0)#erpm source-ip 1.1.1.1 dest-ip 7.1.1.2
Dell(conf-mon-sess-0)#no disable
Dell(conf)#monitor session 1 type erpm
Dell(conf-mon-sess-1)#source vlan 11 direction rx
Dell(conf-mon-sess-1)#erpm source-ip 5.1.1.1 dest-ip 3.1.1.2
Dell(conf-mon-sess-1)#flow-based enable
Dell(conf-mon-sess-1)#no disable
Dell# show monitor session
SessID Source Destination Dir Mode Source IP Dest IP
------ ------ ----------- --- ---- --------- --------
0 Gi 1/9 remote-ip rx Port 1.1.1.1 7.1.1.2
0 Po 1 remote-ip tx Port 1.1.1.1 7.1.1.2
1 Vl 11 remote-ip rx Flow 5.1.1.1 3.1.1.2
The next example shows the configuration of an ERPM session in which VLAN 11 is monitored as the source interface and a MAC ACL
filters the monitored ingress traffic.
Dell(conf)#mac access-list standard flow
Dell(config-std-macl)#seq 5 permit 00:00:0a:00:00:0b count monitor
Dell#show running-config interface vlan 11
!
interface Vlan 11
522
Port Monitoring