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Foundry NetIron M2404C and M2404F Metro Access Switches
Configuring MSTP (Rev. 03)
Overview
© 2008 Foundry Networks, Inc
Page 63 of 70
Switch2
(config-if 1/1/8)#
mstp restrict-tcn enable
Switch2
(config-if 1/1/8)#
exit
3. Enable Loop guard on ports 1/1/1 and 1/1/2:
Switch2
(config)#
interface 1/1/1
Switch2
(config-if 1/1/1)#
mstp detect-bpdu-lost enable
Switch2(config-if 1/1/1)#
interface 1/1/2
Switch2
(config-if 1/1/2)#
mstp detect-bpdu-lost enable
Switch2
(config-if 1/1/2)#
exit
Configuration of Switch 3:
1. Enable the MSTP protocol:
Switch3
#
configure terminal
Switch3
(config)#
protocol
Switch3
(cfg protocol)#
mstp enable
2. Set port 1/1/8 as an edge port. Enable BPDU guard, Restricted Root and Restricted TCN
on this
port:
Switch3
(config)#
interface 1/1/8
Switch3
(config-if 1/1/8)#
mstp edge-port
Switch3
(config-if 1/1/8)#
mstp bpdu-rx discard
Switch3
(config-if 1/1/8)#
mstp restrict-root enable
Switch3
(config-if 1/1/8)#
mstp restrict-tcn enable
Switch3
(config-if 1/1/8)#
exit
3. Enable Loop guard on ports 1/1/1 and 1/1/2:
Switch3
(config)#
interface 1/1/1
Switch3
(config-if 1/1/1)#
mstp detect-bpdu-lost enable
Switch3
(config-if 1/1/1)#
interface 1/1/2
Switch3
(config-if 1/1/2)#
mstp detect-bpdu-lost enable
Switch3
(config-if 1/1/2)#
exit
Configuring a Fast Ring
The following example shows how to configure the switches in a fast ring so that traffic is
correctly distributed among client networks.