Encapsulated Remote Port Monitoring - Dell S4048–ON Configuration Manual

1 Enable control plane egress acl using the following command:
mac control-plane egress-acl
2 Create an extended MAC access list and add a deny rule of (0x0180c2xxxxxx) packets using the following commands:
mac access-list extended mac2
seq 5 deny any 01:80:c2:00:00:00 00:00:00:ff:ff:ff count
3 Apply ACL on that RPM VLAN. In this example RPM vlan is 10.
Dell#show running-config interface vlan 10
!
interface Vlan 10
no ip address
mode remote-port-mirroring
tagged Port-channel 2
mac access-group mac2 out
no shutdown
4 Create Source RPM session as follows (port-channel 1 and port-channel 2 are LACP).
Dell(conf)#monitor session 1 type rpm
Dell(conf-mon-sess-1)#source port-channel 1 destination remote-vlan 10 dir rx
Dell(conf-mon-sess-1)#no disable
5 Show the output for the LACP.
Dell#show interfaces port-channel brief
Codes: L - LACP Port-channel
O - OpenFlow Controller Port-channel
LAG Mode
L1 L3
L2 L2
Dell#

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 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.
• Specify flow-based enable in case of source as VLAN or where you need monitoring on a per-flow basis.
• Specify the monitor keyword in the access list rules for which you want to mirror.
• The system allows you to configure up to four ERPM sessions.
• 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
Status Uptime
up 00:01:17
up 00:00:58
Ports
Te 1/4 (Up)
Te 1/5 (Up)
Port Monitoring 705