Dell MX5108n OS10 Enterprise Edition User Guide for PowerEdge MX IO Modules Re - Page 261

Remote port monitoring, Session and VLAN requirements

Page 261 highlights

Configure source and destination port, and traffic direction OS10(conf-mon-local-1)# source interface ethernet 1/1/7-1/1/8 rx OS10(conf-mon-local-1)# destination interface ethernet1/1/1 OS10(conf-mon-local-1)# no shut View configured monitoring sessions In the State field, true indicates that the port is enabled. In the Reason field, Is UP indicates that hardware resources are allocated. OS10# show monitor session all S.Id Source Destination Dir SrcIP DstIP DSCP TTL State Reason 1 ethernet1/1/7 ethernet1/1/1 rx N/A N/A N/A N/A true Is UP Remote port monitoring Remote port monitoring allows you to monitor ingress and/or egress traffic on multiple source ports of multiple devices and forward the monitored traffic to multiple destination ports on different remote devices. Remote port monitoring helps network administrators monitor and analyze traffic to troubleshoot network problems in a time-saving and efficient way. In a remote port monitoring session, monitored traffic is tagged with a VLAN ID and switched on a user-defined, non-routable L2 VLAN. The VLAN is reserved in the network to carry only monitored traffic, which is forwarded on all egress ports of the VLAN. You must configure each intermediate switch that participates in the transport of monitored traffic with the reserved L2 VLAN. Remote port monitoring supports monitoring sessions in which multiple source and destination ports distribute across multiple network devices. Session and VLAN requirements Remote port monitoring requires a source session (monitored ports on different source devices), a reserved tagged VLAN for transporting monitored traffic (configured on source, intermediate, and destination devices), and a destination session (destination ports connected to analyzers on destination devices). • Configure any network device with source ports and destination ports and enable it to function in an intermediate transport session for a reserved VLAN at the same time for multiple remote port monitoring sessions. Enable and disable individual monitoring sessions. • A remote port monitoring session mirrors monitored traffic by prefixing the reserved VLAN tag to monitored packets to transmit using the reserved VLAN. • The source address, destination address, and original VLAN ID of the mirrored packet are prefixed with the tagged VLAN header. Untagged source packets are tagged with the reserved VLAN ID. Layer 2 261

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Configure
source and destination port, and
traffic
direction
OS10(conf-mon-local-1)# source interface ethernet 1/1/7-1/1/8 rx
OS10(conf-mon-local-1)# destination interface ethernet1/1/1
OS10(conf-mon-local-1)# no shut
View
configured
monitoring sessions
In the State
field,
true
indicates that the port is enabled. In the Reason
field,
Is UP
indicates that hardware resources are allocated.
OS10# show monitor session all
S.Id
Source
Destination
Dir SrcIP DstIP DSCP TTL
State Reason
----------------------------------------------------------------------
1
ethernet1/1/7
ethernet1/1/1 rx
N/A
N/A
N/A
N/A
true
Is UP
Remote port monitoring
Remote port monitoring allows you to monitor ingress and/or egress
traffic
on multiple source ports of multiple devices and forward the
monitored
traffic
to multiple destination ports on
different
remote devices. Remote port monitoring helps network administrators monitor
and analyze
traffic
to troubleshoot network problems in a time-saving and
efficient
way.
In a remote port monitoring session, monitored
traffic
is tagged with a VLAN ID and switched on a
user-defined,
non-routable L2 VLAN.
The VLAN is reserved in the network to carry only monitored
traffic,
which is forwarded on all egress ports of the VLAN. You must
configure
each intermediate switch that participates in the transport of monitored
traffic
with the reserved L2 VLAN. Remote port
monitoring supports monitoring sessions in which multiple source and destination ports distribute across multiple network devices.
Session and VLAN requirements
Remote port monitoring requires a source session (monitored ports on
different
source devices), a reserved tagged VLAN for transporting
monitored
traffic
(configured
on source, intermediate, and destination devices), and a destination session (destination ports connected to
analyzers on destination devices).
Configure
any network device with source ports and destination ports and enable it to function in an intermediate transport session for
a reserved VLAN at the same time for multiple remote port monitoring sessions. Enable and disable individual monitoring sessions.
A remote port monitoring session mirrors monitored
traffic
by
prefixing
the reserved VLAN tag to monitored packets to transmit using
the reserved VLAN.
The source address, destination address, and original VLAN ID of the mirrored packet are
prefixed
with the tagged VLAN header.
Untagged source packets are tagged with the reserved VLAN ID.
Layer 2
261