Skip Navigation Links
Exit Print View
| Sun Ethernet Fabric Operating System ### PVRST+ Administration Guide

Search Scope:

- This Document
- Entire Library

## Configure the Transmit Hold Count

The transmit hold count value is a counter used to limit the maximum transmission rate of the switch. The number or BPDUs transmitted during every hello-time period ranges from a minimum of one to a maximum that is not more than the `TxHoldCount` value.

1. Configure the transmit hold count.

       TOR-1 SEFOS# configure terminal
       TOR-1 SEFOS(config)# spanning-tree vlan 10 hold-count 6

       Hold Count for the given instance is set

       TOR-1 SEFOS(config)# end

   The transmit hold count value ranges from 1 to 10. The default value is 3.

2. Review the spanning tree details.

       TOR-1 SEFOS# show spanning-tree vlan 10 detail

       Bridge is executing the rstp compatible PVRST Protocol
       Bridge Identifier has priority 32778, Address 00:14:4f:6c:69:ed
       Configured Hello time 2 sec, Max Age 20 sec, Forward Delay 15 sec
       Number of Topology Changes 2
       Time since topology Change 0 seconds ago
       Transmit Hold-Count 6
       Max Age 20 Sec, Forward Delay 15 Sec, Hello Time 2 Sec

       Port 1 [Ex0/1] of VLAN 10 is Root      , Forwarding
       Port PathCost 2000     , Port Priority 128      , Port Identifier  128.1
       Designated Root has priority 32778, address 00:14:4f:6c:56:6f
       Designated Bridge has priority 32778, address 00:14:4f:6c:56:6f
       Designated Port Id is 128.3, Designated PathCost 0
       Timers: Hello Time - 2, MaxAge - 20, Forward Delay - 15, Hold - 1
       No of Transitions to forwarding State :3
       BPDUs : sent 16 , recieved 46817

       Port 57 [Ex0/57] of VLAN 10 is Designated, Forwarding
       Port PathCost 2000     , Port Priority 128      , Port Identifier  128.57
       Designated Root has priority 32778, address 00:14:4f:6c:56:6f
       Designated Bridge has priority 32778, address 00:14:4f:6c:69:ed
       Designated Port Id is 128.57, Designated PathCost 2000
       Timers: Hello Time - 2, MaxAge - 20, Forward Delay - 15, Hold - 1
       No of Transitions to forwarding State :6
       BPDUs : sent 5064 , recieved 41443

       TOR-1 SEFOS#

3. Reset the transmit hold count to the default value.

       TOR-1 SEFOS# configure terminal
       TOR-1 SEFOS(config)# no spanning-tree vlan 10 hold-count

       Hold Count for the given instance is set

       TOR-1 SEFOS(config)# end
       TOR-1 SEFOS#

4. Display the hold count after resetting it to the default.

       TOR-1 SEFOS# show spanning-tree vlan 10 detail

       Bridge is executing the rstp compatible PVRST Protocol
       Bridge Identifier has priority 32778, Address 00:14:4f:6c:69:ed
       Configured Hello time 2 sec, Max Age 20 sec, Forward Delay 15 sec
       Number of Topology Changes 2
       Time since topology Change 0 seconds ago
       Transmit Hold-Count 3
       Max Age 20 Sec, Forward Delay 15 Sec, Hello Time 2 Sec

       Port 1 [Ex0/1] of VLAN 10 is Root      , Forwarding
       Port PathCost 2000     , Port Priority 128      , Port Identifier  128.1
       Designated Root has priority 32778, address 00:14:4f:6c:56:6f
       Designated Bridge has priority 32778, address 00:14:4f:6c:56:6f
       Designated Port Id is 128.3, Designated PathCost 0
       Timers: Hello Time - 2, MaxAge - 20, Forward Delay - 15, Hold - 1
       No of Transitions to forwarding State :3
       BPDUs : sent 16 , recieved 46898

       Port 57 [Ex0/57] of VLAN 10 is Designated, Forwarding
       Port PathCost 2000     , Port Priority 128      , Port Identifier  128.57
       Designated Root has priority 32778, address 00:14:4f:6c:56:6f
       Designated Bridge has priority 32778, address 00:14:4f:6c:69:ed
       Designated Port Id is 128.57, Designated PathCost 2000
       Timers: Hello Time - 2, MaxAge - 20, Forward Delay - 15, Hold - 1
       No of Transitions to forwarding State :6
       BPDUs : sent 5146 , recieved 41443

       TOR-1 SEFOS#

Copyright © 2010, 2012, Oracle and/or its affiliates. All rights reserved. Legal Notices |