Wendell odom

interface gigabitethernet command, 
357
interface ID, 547
interface loopback command, 470, 
481, 496
interface port-channel command, 416
interface port-channel number 
command, 411
interface range command, 154, 169, 
187
interface type number.subint 
command, 397
interface vlan command, 148, 415
interface vlan 1 command, 142
interface vlan vlan_id command, 403
interfaces, 87
administratively shutdown, 217
blocking state, 215
controllers, 673, 681
dynamic interfaces, 674-675, 678
EtherChannels, adding, 251-253
failed interfaces, 217
forwarding state, 215
Layer 1 problems, 166-168
learning state, 227
listening state, 227
management interfaces, 674
OSPF
metrics, 493
passive interfaces, 487-488
OSPFv2 configuration, 483-486
physical interface configuration, 
251-253
ports, compared, 671
routed interfaces, Layer 3 (multilayer) 
switches, 407-409
routers, 356-357
bandwidth, 361
clock rates, 361
IP addresses, 360-361
status codes, 358-359
service port interfaces, 674
9780135792735_book.indb 771
9780135792735_book.indb 771
7/25/19 2:45 PM
7/25/19 2:45 PM

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772 interfaces
speed and duplex issues, 163-166
states, 216-217, 227
status codes, 162-163, 358-359
subcommands, 97
subinterfaces, 396-397
SVI, 392, 401-406
switch interface configuration, 
152-162
troubleshooting, 162-168
virtual interfaces, 674
VLAN interfaces, 402
WLC interfaces, 673-675
working interfaces, 217
interference, simultaneous trans-