Install Guide

Table Of Contents
The below configuration example shows that the source is a source VLAN and the destination is the reserved VLAN (for
example, remote-vlan 20) with the flow based monitoring enabled.
Configuring Remote Port Mirroring on an intermediate switch
Following is a sample configuration of RPM on an intermediate switch.
Configuring Remote Port Mirroring on a destination switch
Following is a sample configuration of RPM on a destination switch.
Configuration Example of RPM for port-channel
This example provides a sample configuration of remote port mirroring for the port-channel source interface.
Configuring Remote Port Mirroring on source switch
The below configuration example shows that the source is a source port-channel and the destination is the reserved VLAN (for
example, remote-vlan 30).
Configuring Remote Port Mirroring on an intermediate switch
Following is a sample configuration of RPM on an intermediate switch.
Configuring Remote Port Mirroring on a Destination switch
Following is a sample configuration of RPM on a destination switch.
Encapsulated Remote Port Monitoring
Encapsulated Remote Port Monitoring (ERPM) copies traffic from source ports/port-channels or source VLANs and forwards
the traffic using routable GRE-encapsulated packets to the destination IP address specified in the session.
NOTE:
When configuring ERPM, follow these guidelines
The Dell EMC Networking OS supports ERPM source session only. Encapsulated packets terminate at the destination IP
address or at the analyzer.
You can configure up to four ERPM source sessions on switch.
Configure the system MTU to accommodate the increased size of the ERPM mirrored packet.
The maximum number of source ports you can define in a session is 128.
The system encapsulates the complete ingress or egress data under GRE header, IP header, and outer MAC header and
sends it out at the next hop interface as pointed by the routing table.
ERPM sessions do not copy locally sourced remote VLAN traffic from source trunk ports that carry RPM VLANs. ERPM
sessions do not copy locally sourced ERPM GRE-encapsulated traffic from source ports.
Flow-based mirroring is supported only for source VLAN ingress traffic.
Changes to Default Behavior
Rate-limiting is supported for the ERSPAN traffic.
You can configure the same port as both source and destination in an ERSPAN session.
You can configure TTL and TOS values in the IP header of the ERSPAN traffic.
Configuration steps for ERPM
To configure an ERPM session:
Table 69. 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 the Monitoring-
588 Port Monitoring