Users Guide

Layer 2 Switching Commands 827
User Guidelines
There are no user guidelines for this command.
Example
The following example sets the maximum number of BPDUs sent to 6.
console(config)#spanning-tree transmit hold-count 6
spanning-tree uplinkfast
Use the spanning-tree uplinkfast command to configure the rate at which
gratuitous frames are sent (in packets per second) after a switchover to an
alternate port on STP-PV and RSTP-PV configured switches and enable
Direct Link Rapid Convergence on STP-PV switches. This command assists
in accelerating spanning-tree convergence after switchover to an alternate
port.
Use the no form of the command to return the configured rate to the default
value (or disable uplinkfast on STP-PV configured switches).
Syntax
spanning-tree uplinkfast [max-update-rate packets/s ]
no spanning-tree uplinkfast [max-update-rate]
• max-update-rate—The rate at which update packets are sent. (Range: 0-
32000)
Default Configuration
The default rate is 150.
Command Modes
Global Configuration Mode
User Guidelines
DirectLink Rapid Convergence (DRC) can be configured even if the switch is
configured for MST(RSTP) mode. It only has an effect when the switch is
configured for STP-PV or RSTP-PV modes. Enabling DRC sets the switch