Users Guide

• If the destination IP address is not reachable, the session goes down.
• OS10 does not support an ERPM destination session and decapsulation of ERPM packets at the destination switch.
• You can congure a maximum of four ERPM sessions with a maximum of 128 source ports in each session. You can congure these
four ERPM sessions in one of the following methods:
– Single directional with either four ingress or four egress sessions.
– Bidirectional with two ingress and two egress sessions.
• You can monitor a source VLAN only through ow-based monitoring. Only ingress is supported in ow-based source VLAN monitoring.
• You cannot congure an interface with ERPM trac as a source for an ERPM session.
• You cannot monitor an RPM VLAN as a source.
• You cannot congure the same destination IP address for two sessions.
• You cannot congure an interface that serves as egress for a GRE tunnel as a source interface.
• ERPM supports only GRE-over-IPv4 tunneling.
• ERPM does not support Equal cost multi-path (ECMP).
• You can use third party devices as only tunnel-transit devices.
• OS10 does not support monitoring VLAN sub-interfaces and CPU-generated packets.
Congure encapsulated remote port monitoring
Encapsulated remote port monitoring requires valid source and destination IP addresses. Ensure that the source IP address is local and
destination IP address is remote. You can also congure the time-to-live (TTL) and dierentiated services code point (DSCP) values.
1 Create monitoring session in CONFIGURATION mode.
monitor session session-id type erpm-source
2 Congure source port in MONITOR-SESSION mode.
source interface interface-type {both | rx | tx}
3 Congure source and destination IP addresses, and protocol type in MONITOR-SESSION mode.
source-ip source ip-address destination-ip destination ip-address [gre-protocol protocol-
value]
4 Congure TTL and DSCP values in MONITOR-SESSION mode.
ip {ttl ttl-number | dscp dscp-number}
5 Enable the monitoring interface in MONITOR-SESSION mode.
no shut
Create monitoring session
OS10(config)# monitor session 10 type erpm-source
OS10(conf-mon-erpm-source-10)#
Congure source port, source and destination IP addresses, and protocol type
OS10(conf-mon-erpm-source-10)# source interface ethernet 1/1/2
OS10(conf-mon-erpm-source-10)# source-ip 1.1.1.1 destination-ip 3.3.3.3 gre-protocol 35006
OS10(conf-mon-erpm-source-10)# ip ttl 16
OS10(conf-mon-erpm-source-10)# ip dscp 63
OS10(conf-mon-erpm-source-10)# no shut
View congured ERPM session
OS10(conf-mon-erpm-source-6)# do show monitor session all
S.Id Source Destination Dir Mode Source IP Dest IP DSCP TTL Gre-Protocol State
Reason
------------------------------------------------------------------------------------------------
--
6 ethernet1/1/2 remote-ip both port 1.1.1.1 3.3.3.3 63 16 35006 true Is
UP
Layer 2
445