Cdp Forward - Cisco Catalyst 3560X-24P Command Reference Manual

Chapter 2 Catalyst 3750-X and 3560-X Switch Cisco IOS Commands

cdp forward

To specify the ingress and egress switch ports for CDP traffic, use the cdp forward global configuration
command. To return to the default setting, use the no form of this command.
This command is not supported on switches running the LAN base feature set.
Note
Syntax Description ingress port-id
egress port-id
Defaults The default path for CDP packets through the switch is from any ingress port to the egress port connected
to the Cisco Telepresence System.
Command Modes Global configuration
Command History Release
12.2(53)SE2
Usage Guidelines You must use only CDP-enabled phones with TelePresence E911 IP phone support.
You can connect the IP phone and codec in the Cisco TelePresence System through any two ports in a
switch stack.
Examples
Switch# configure terminal
Enter configuration commands, one per line.
Switch(config)# cdp forward ingress gigabitethernet2/0/1 egress gigabitethernet2/0/12
Switch(config)# cdp forward ingress gigabitethernet2/0/2 egress gigabitethernet2/0/13
Switch(config)# end
Switch# show running-config | include cdp
cdp forward ingress GigabitEthernet2/0/1 egress GigabitEthernet2/0/12
cdp forward ingress GigabitEthernet2/0/2 egress GigabitEthernet2/0/13
Switch# show cdp forward
Ingress
Port
-------------------------------------------------------------
Gi2/0/1
Gi2/0/2
OL-21522-02
cdp forward ingress port-id egress port-id
no cdp forward ingress port-id
Specifies the switch port that receives the CDP packet from an IP phone.
Specifies the switch port that forwards the CDP packet to the Cisco
TelePresence System.
Modification
This command was introduced.
Egress
Port
Gi2/0/12
Gi2/0/13
End with CNTL/Z.
# packets # packets
forwarded dropped
0 0
0 0
Catalyst 3750-X and 3560-X Switch Command Reference
cdp forward
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