Specifications

Index
IN-24
Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide
78-11380-07
STP
accelerating root port selection
14-4
BackboneFast
described
14-10
enabling 14-19
BPDU filtering
described
14-3
enabling 14-16
BPDU guard
described
14-3
enabling 14-15
BPDU message exchange 12-2
configuration guidelines 12-11
configuring
forward-delay time
12-19
hello time 12-18
in cascaded stack 12-20
maximum aging time 12-20
path cost 12-16
port priority 12-15, 13-17
root switch 12-12
secondary root switch 12-14
switch priority 12-18
cross-stack UplinkFast
described
14-5
enabling 14-18
default configuration 12-10
default optional feature configuration 14-14
designated port, defined 12-3
designated switch, defined 12-3
detecting indirect link failures 14-10
disabling 12-11
displaying status 12-21
EtherChannel guard
described
14-12
enabling 14-19
STP (continued)
extended system ID
affects on root switch
12-12
affects on the secondary root switch 12-14
overview 12-4
unexpected behavior 12-13
features supported 1-4
inferior BPDU 12-3
interface state, blocking to forwarding 14-2
interface states
blocking
12-7
disabled 12-8
forwarding 12-7, 12-8
learning 12-7
listening 12-7
overview 12-6
limitations with 802.1Q trunks 12-8
load sharing
overview
15-21
using path costs 15-23
using port priorities 15-22
loop guard
described
14-13
enabling 14-20
multicast addresses, affect of 12-8
overview 12-2
path costs 15-23, 15-24
Port Fast
described
14-2
enabling 14-14
port priorities 15-22
preventing root switch selection 14-12
redundant connectivity 12-9
root guard
described
14-12
enabling 14-20