Dell MX5108n OS10 Enterprise Edition User Guide for PowerEdge MX IO Modules Re - Page 263

Encapsulated remote port monitoring

Page 263 highlights

View monitoring session OS10(conf-mon-rspan-source-10)# do show monitor session all S.Id Source Destination Dir SrcIP DstIP DSCP TTL State Reason 1 vlan10 vlan 100 rx N/A N/A N/A N/A true Is UP Encapsulated remote port monitoring The monitored traffic can also be transmitted over an L3 network to a remote analyzer. The encapsulated remote port monitoring (ERPM) session mirrors traffic from the source ports/lags or source VLANs and forwards the traffic using routable GRE-encapsulated packets to the destination IP address specified in the session. Consider the following points while configuring an ERPM session: • OS10 supports only the ERPM source session. The encapsulated packets terminate at the destination IP address, the remote analyzer. • The source IP address must be a valid local IP address for the session to be up. • The destination IP address must be on a remote L3 node that supports standard GRE decapsulation. • If the destination IP address is not reachable, the session goes down. • OS10 does not support ERPM destination session and decapsulation of ERPM packets at the destination switch. • You can configure a maximum of 4 ERPM sessions with a maximum of 128 source ports in each session. You can configure these 4 ERPM sessions in one of the following methods: - Single directional with either 4 ingress or 4 egress sessions. - Bidirectional with 2 ingress and 2 egress sessions. • In the S4200 platforms, you can configure a maximum of 15 ERPM sessions with a maximum of 128 source ports in each session. You can configure these 15 ERPM sessions in one of the following methods: - Single directional with either 15 ingress or 15 egress sessions. - Bidirectional with 15 ingress and egress sessions. • You can monitor a source VLAN only through flow-based monitoring. Only ingress is supported in a flow-based source VLAN monitoring. • You cannot configure an interface with ERPM traffic as a source for an ERPM session. • You cannot monitor an RPM VLAN as a source. • You cannot configure the same destination IP address for two sessions. • You cannot configure an interface that serves as egress for GRE tunnel as a source interface. • ERPM supports only GRE over IPv4 tunneling. • ERPM does not support ECMP. • You can use third party devices as only tunnel-transit devices. • OS10 does not support monitoring VLAN sub-interfaces and CPU generated packets. Configure 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 configure the TTL and DSCP values. Create monitoring session OS10(config)# monitor session 10 type erpm-source S10(conf-mon-erpm-source-10)# Configure 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 Layer 2 263

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View monitoring session
OS10(conf-mon-rspan-source-10)# do show monitor session all
S.Id
Source
Destination Dir SrcIP DstIP DSCP TTL
State Reason
---------------------------------------------------------------
1
vlan10
vlan 100
rx
N/A
N/A
N/A
N/A
true
Is UP
Encapsulated remote port monitoring
The monitored
traffic
can also be transmitted over an L3 network to a remote analyzer. The encapsulated remote port monitoring (ERPM)
session mirrors
traffic
from the source ports/lags or source VLANs and forwards the
traffic
using routable GRE-encapsulated packets to
the destination IP address
specified
in the session.
Consider the following points while
configuring
an ERPM session:
OS10 supports only the ERPM source session. The encapsulated packets terminate at the destination IP address, the remote analyzer.
The source IP address must be a valid local IP address for the session to be up.
The destination IP address must be on a remote L3 node that supports standard GRE decapsulation.
If the destination IP address is not reachable, the session goes down.
OS10 does not support ERPM destination session and decapsulation of ERPM packets at the destination switch.
You can
configure
a maximum of 4 ERPM sessions with a maximum of 128 source ports in each session. You can
configure
these 4
ERPM sessions in one of the following methods:
Single directional with either 4 ingress or 4 egress sessions.
Bidirectional with 2 ingress and 2 egress sessions.
In the S4200 platforms, you can
configure
a maximum of 15 ERPM sessions with a maximum of 128 source ports in each session. You
can
configure
these 15 ERPM sessions in one of the following methods:
Single directional with either 15 ingress or 15 egress sessions.
Bidirectional with 15 ingress and egress sessions.
You can monitor a source VLAN only through
flow-based
monitoring. Only ingress is supported in a
flow-based
source VLAN
monitoring.
You cannot
configure
an interface with ERPM
traffic
as a source for an ERPM session.
You cannot monitor an RPM VLAN as a source.
You cannot
configure
the same destination IP address for two sessions.
You cannot
configure
an interface that serves as egress for GRE tunnel as a source interface.
ERPM supports only GRE over IPv4 tunneling.
ERPM does not support ECMP.
You can use third party devices as only tunnel-transit devices.
OS10 does not support monitoring VLAN sub-interfaces and CPU generated packets.
Configure
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
configure
the TTL and DSCP values.
Create monitoring session
OS10(config)# monitor session 10 type erpm-source
S10(conf-mon-erpm-source-10)#
Configure
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
Layer 2
263