Cisco Catalyst 4948 - Page 351

configuring, 164-166
information, displaying, 166
SNMP (Simple Network Management
Protocol)
access, configuring, 200-201
configuration files, saving, 203
configuring, 199-200, 202
displaying information, 206
example configuration, 205-206
notifications, traps, 203-204
RMON support, 204-205
SPAN
configuring, 206-208
displaying information, 211-213
example, 210
RSPAN, configuring, 208-210
Spanning-Tree MAC reduction,
enabling on extended VLANs, 90
SRM/SSO mode, 43
SSH (Secure Shell), configuring,
184-185
SSO (Supervisor Switchover), 132
configuring, 133-134
displaying information about, 135
stability of STP, improving, 115
standard VLANs, 88-89
standby Supervisor, system redun-
dancy, 42
state parameter, configuring Ethernet
VLANs, 89
stateless backup, 153
static port assignment (VLANs), 91
STP (Spanning Tree Protocol), 111
BID, 112
BPDUs, TC bit set, 114
configuring, 116-120
convergence tuning, 124-126
displaying information, 120
election processes, 112
example, 115-116
load balancing, example, 122-123
path costs, 113-114
poor root placement, example,
120-122
port states, 114
stability, improving, 115
tiebreakers, 113
topology changes, 114
topology navigation, 127-130
STP BackboneFast, 124
STP Root Guard, enabling, 118
STP UplinkFast, 124
stratum, 47
subinterfaces, configuring, 83-84
Supervisor Engine
banners, configuring, 26
forcing changes in backup
Supervisor, 44
FSU, performing, 138-139
IOS images, synchronizing, 44
modes of operation, 42-43
prompts, configuring, 25
SSO, 132
synchronizing boot parameters, 45
system redundancy, 42
switch authentication
configuring, 180
example, 182
RADIUS, configuring, 181-182
TACACS, configuring, 181
switch blocks, 20-21
switch modules, redundancy, 22
switch port trunk encapsulation
command, 96
330 SNMP (Simple Network Management Protocol)