Cisco Router IOS XR Getting Started Manual page 51

Chapter 3 Bringing Up the Cisco IOS XR Software on a Multishelf System
Command or Action
Step 10
spanning-tree mst forward-time seconds
Example:
router(config)# spanning-tree mst forward-time 6
Step 11
spanning-tree mst max-age seconds
Example:
router(config)# spanning-tree mst max-age 8
Step 12
spanning-tree mst max-hops hops
Example:
router(config)# spanning-tree mst max-hops 4
Step 13
spanning-tree mst instance_id priority priority
Example:
router(config)# spanning-tree mst 0-1 priority
28672
Step 14
udld aggressive
Example:
router(config)# udld aggressive
Step 15
udld message time interval
Example:
router(config)# udld message time 7
Step 16
interface gigabitethernet slot/port
Example:
router(config)# interface GigabitEthernet3/1
Step 17
switchport
Example:
router(config-if)# switchport
Step 18
switchport mode access
Example:
router(config-if)# switchport mode access
OL-10957-02
Configuring the External Cisco Catalyst 6509 Switches
Purpose
Sets the forward-delay timer for all MST instances on
the switch.
We recommend 6 seconds.
•
Sets the maximum-age timer for all MST instances on
the switch.
We recommend 8 seconds.
•
Specifies the number of possible hops in the region
before a BPDU is discarded.
We recommend 4 hops.
•
Sets the spanning tree priority for the switch.
The primary Catalyst switch should be configured
•
with priority 0. Priority 0 makes the switch the root
of the network.
The second Catalyst switch should be configured
•
with a number greater than 0 and less than 32768. If
the primary Catalyst switch (priority 0) fails, the
second switch becomes the root of the network.
Enables the Unidirectional Link Detection (UDLD)
protocol aggressive mode.
Configures the time between UDLD probe messages on
ports that are in advertisement mode and are currently
determined to be bidirectional.
• Valid values are from 7 to 90 seconds.
We recommend 7 seconds.
•
Enters interface configuration mode for the specified
interface.
Configures a LAN interface as a Layer 2 interface in
preparation for additional switchport commands.
Specifies a nontrunking, nontagged single-VLAN
Layer-2 interface.
Cisco IOS XR Getting Started Guide
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