Configuring Network State Tracking For Vpc-Hm - Cisco Nexus 1000V Configuration Manual

Configuring Port Channels
Step 12 Create the port channel type that you want in the upstream switch. See
Channel.

Configuring Network State Tracking for vPC-HM

You can configure Network State Tracking to pinpoint link failures on port channels configured for vPC-HM.
Before You Begin
• Log in to the CLI in EXEC mode.
• Know that once you enable Network State Tracking, it is used on every VEM that is configured with a
• If you specify repinning (the default) and a split network is detected, know that Ethernet interfaces are
Procedure
Step 1
Step 2
Step 3
Step 4
Step 5
vPC-HM port profile.
inactivated, and the vEths are redistributed among all interfaces including the reactivated Ethernet
interfaces. Restoration to the earlier pinned state is not guaranteed.
Command or Action
switch# configure terminal
switch(config)# track network-state
enable
switch(config)# track network-state
interval seconds
switch(config)# track network-state
split action [repin | log-only]
switch(config)# track network-state
threshold miss-count count
Cisco Nexus 1000V for VMware vSphere Interface Configuration Guide, Release 5.x
Configuring Network State Tracking for vPC-HM
Creating a Port Profile for a Port
Purpose
Enters global configuration mode.
Enables Network State Tracking on all interfaces in
vPC-HM port-channels.
(Optional)
Specifies the interval of time, from 1 to 10 seconds,
between which tracking broadcasts are sent; and the
interval for tracking packets. The default interval is 5
seconds between broadcasts.
(Optional)
Specifies the action to be taken if a split network is
detected.
• repin—Pins traffic to another uplink (the default).
• no repin—Leaves vEthernet interfaces where they
are.
(Optional)
Specifies the maximum number of broadcasts that can be
missed successively (from 3 to 7) before a split network
is declared. The default is 5 missed broadcasts.
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