Specifying Filters; Guidelines To Specifying Filters; Sd Port Characteristics; Guidelines To Configure Span - Cisco DS-X9530-SF1-K9 - Supervisor-1 Module - Control Processor Configuration Manual

Specifying Filters

S e n d d o c u m e n t a t i o n c o m m e n t s t o m d s f e e d b a c k - d o c @ c i s c o . c o m .
Specifying Filters
You can perform VSAN-based filtering to selectively monitor network traffic on specified VSANs. You
can apply this VSAN filter to all sources in a session (see
are spanned.
You can specify session VSAN filters that are applied to all sources in the specified session. These filters
are bidirectional and apply to all sources configured in the session.

Guidelines to Specifying Filters

The following guidelines apply to SPAN filters:
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SD Port Characteristics

An SD port has the following characteristics:
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If you need to change an SD port mode to another port mode, first remove the SD port from all sessions
Note
and then change the port mode using the switchport mode command.

Guidelines to Configure SPAN

The following guidelines apply for SPAN configurations:
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Cisco MDS 9000 Family Configuration Guide
43-6
PortChannel configurations are applied to all ports in the PortChannel.
If no filters are specified, the traffic from all active VSANs for that interface is spanned by default.
While you can specify arbitrary VSAN filters in a session, traffic can only be monitored on the port
VSAN or on allowed-active VSANs in that interface.
Ignores BB_credits.
Allows data traffic only in the egress (Tx) direction.
Does not require a device or an analyzer to be physically connected.
Supports only 1 Gbps or 2 Gbps speeds. The auto speed option is not allowed.
Multiple sessions can share the same destination ports.
If the SD port is shut down, all shared sessions stop generating SPAN traffic.
The outgoing frames can be encapsulated in Extended Inter-Switch Link (EISL) format.
The SD port does not have a port VSAN.
SD ports cannot be configured using Advanced Services Modules (ASMs) or Storage Services
Modules (SSMs).
The port mode cannot be changed if it is being used for a SPAN session.
You can configure up to 16 SPAN sessions with multiple ingress (Rx) sources.
You can configure a maximum of three SPAN sessions with one egress (Tx) port.
Chapter 43 Monitoring Network Traffic Using SPAN
Figure 43-4). Only VSANs present in the filter
OL-6973-03, Cisco MDS SAN-OS Release 2.x