nx.os.and.cisco.nexus.switching.2nd.edition.1587143046

This bridge is the root
Hello Time 2 sec Max Age 12 sec Forward
Delay 9 sec
Bridge ID Priority 4106 (priority 4096 sys-id-ext
10)
Address 001b.54c2.bbc1
Hello Time 2 sec Max Age 12 sec Forward
Delay 9 sec
Interface Role Sts Cost Prio.Nbr Type
---------------- ---- --- --------- -------- -------------
-------------------
Po100 Desg FWD 1 128.4195 (vPC peerlink)
Network P2p
As you can see in the previous example, the hello time, max age, and forward delay have
been adjusted based on the STP diameter keyword.
MST Configuration
The examples in this section demonstrate the same configuration as the previous section
using MST instead of Rapid-PVST. The configuration steps are similar; however, you see
the additional steps of creating an instance, defining a revision number, and associating
VLANs with an instance. These steps are required to define which VLANs share the same
spanning tree topology within MST.
Example 2-30 demonstrates basic MST configuration.
Example 2-30. Basic MST Configuration
Click here to view code image
Congo# conf t
Enter configuration commands, one per line. End with
CNTL/Z.
Congo(config)# spanning-tree mode mst
Congo(config)# spanning-tree mst configuration
Congo(config-mst)# name AGG1
Congo(config-mst)# revision 10
Congo(config-mst)# instance 1 vlan 1-10
Congo(config-mst)# instance 2 vlan 11-20
Congo(config-mst)#
Prior to exiting from MST configuration mode, it is recommended to review the changes
being proposed. Existing MST mode commits all changes prior to exiting.
Example 2-31 shows MST verification.