Index
IN-40
Software Configuration Guide—Release IOS XE 3.9.0E and IOS 15.2(5)E
with CiscoWorks 4
with system message logging 1
with traceroute 8
Troubleshooting AVC with DNS-AS 24
troubleshooting high CPU due to ACLs 7
trunk failover
See link-state tracking
trunk ports
configure port security
17
configuring PVLAN 19–21
trunks
802.1Q restrictions
4
configuring 5
configuring access VLANs 5
configuring allowed VLANs 5
default interface configuration 5
enabling to non-DTP device 3
specifying native VLAN 5
understanding 3
trustpoint 3
TTL 3
tunnel ports
802.1Q, configuring
5
described 2
incompatibilities with other features 5
tunneling
defined
1
TwinGig Convertors
limitations on using
13
port numbering 13
selecting X2/TwinGig Convertor mode 14
TXT DNS Resource Record 3
TXT record 3
type length value
See TLV
type of service
See TOS
U
UDLD
configuring probe message interval per-interface
8
default configuration 3
disabling on fiber-optic interfaces 7
disabling on non-fiber-optic interfaces 7
displaying link status 9
enabling globally 5
enabling per-interface 6
modes of operation 3
resetting disabled LAN interfaces 8
use case 2
UDLD, overview 1
UDP jitter operation, IP SLAs 8
UDP jitter, configuring 9
unauthorized ports with 802.1X 4
unicast
See IP unicast
unicast flood blocking
configuring
1
unicast MAC address filtering
and adding static addresses
38
and broadcast MAC addresses 37
and CPU packets 37
and multicast addresses 37
and router MAC addresses 37
configuration guidelines 37
described 37
unicast MAC address filtering, configuring
ACLs
configuring unicast MAC address filtering
16
Unicast RPF (Unicast Reverse Path Forwarding)
applying
5
BGP attributes
caution
4
CEF
requirement
2
tables 7