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Catalyst 6500 Series Switch Command Reference—Release8.4
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Chapter2 Catalyst 6500 Series Switch and ROM Monitor Commands set msfcautostate
Caution You should not disable the MSFC auto state feature because the Layer 3 interface status might not
accurately reflect the Layer 2 interface status. If you d isable thi s fe atur e, t r affic might be d isca rd ed
without notice even though other valid traffic paths might exist.
Autostate exclude mode allows you to specify the ports to exclude from autostate. In normal autostate
mode, Layer 3 interfaces remain up if at least one port in the VLAN remains up. If there are appliances
like load balancers or firewall servers that are connected to ports in the VLAN, you can configure these
ports to be excluded from the autostate feature to make sure that the f orward ing SV I do es not go down
if these ports become inactive.
Autostate exclude mode affects all VLANs to which the port belongs and is supported on Ethernet, Fast
Ethernet, and Gigabit Ethernet ports only.
You can use autostate track mode to track key VLAN or port connections to the MSFC. When you
configure the autostate track mode, the SVI stays up if any tracked connections remain up in the V LAN.
Track mode requires that you define a global tracked VLAN group. The VLANs in this group will be
tracked by MSFC autostate whether or not you define a member port to be tracke d.
When you configure a VLAN and ports to be tracked by autostate, tracked SVIs remain down until at
least one tracked Ethernet port in the VLAN moves to the Spanning Tree Protocol (STP) forwarding
state. Conversely, tracked SVIs remain up if at least one tracked Ethernet port stays in the STP
forwarding state.
Autostate track mode is supported on Ethernet, Fast Ether net , a nd G igab it Ethe rn et por ts on ly.
Note You cannot configure both autostate exclude mode and autostate track mode on the sa me por t.
Examples This example shows how to disable the line protocol state determination of the MSFC:
Console> (enable) set msfcautostate disable
Console> (enable)
This example shows how to exclude a port from MSFC autostate:
Console> (enable) set msfcautostate exclude 3/1
Port 3/1 configured as excluded port
Console> (enable)
This example shows how to configure autostate to track ports 1-5 on module 3 :
Console> (enable) set msfcautostate track 3/1-5
Port 3/1-5 configured as tracked port
Console> (enable)
This example shows how to configure autostate to track VLANs 20, 21, 22, a nd 28 :
Console> (enable) set msfcautostate track enable 20-22,28
Vlans 20-22,28 added to MSFC autostate track vlan group
Console> (enable)
Related Commands clear msfcautostate
show msfcautostate