Cisco Catalyst 4500 Series Software Configuration Manual page 890

Configuring Layer 2 Protocol Tunneling
Command
Step 6
Switch(config-if)#
l2protocol-tunnel drop-threshold
[
point-to-point
value
Step 7
Switch(config-if)# no cdp enable
Step 8
Switch(config-if)# spanning-tree
bpdufilter
Step 9
Switch(config)# exit
Step 10
Switch(config)# errdisable
recovery cause l2ptguard
Step 11
Switch(config)# l2protocol-tunnel
cos value
Step 12
Switch(config)# end
Step 13
Switch# show l2protocol
Step 14
Switch# copy running-config
startup-config
Use the no l2protocol-tunnel [point-to-point [pagp | lacp | udld]] interface configuration command to
disable point-to-point protocol tunneling for one of the Layer 2 protocols or for all three. Use the no
l2protocol-tunnel shutdown-threshold [point-to-point [pagp | lacp | udld]] and the no
l2protocol-tunnel drop-threshold [point-to-point [pagp | lacp | udld]] commands to return the
shutdown and drop thresholds to their default settings.
This example shows how to configure the SP edge switch:
Switch(config)# interface gigabitEthernet 1/1/11
Switch(config-if)# switchport mode dot1q-tunnel
Switch(config-if)# switchport access vlan 10
Switch(config-if)# l2protocol-tunnel point-to-point
Switch(config-if)# l2protocol-tunnel shutdown-threshold point-to-point 3000
Switch(config-if)# l2protocol-tunnel drop-threshold point-to-point 2500
Switch(config-if)# exit
Switch# show l2protocol-tunnel
COS for Encapsulated Packets: 5
Drop Threshold for Encapsulated Packets: 0
Port
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Gi1/1/11
Catalyst 4500 Series Switch, Cisco IOS Software Configuration Guide - Cisco IOS XE 3.9.xE and IOS 15.2(5)Ex
30-20
Chapter 30
Purpose
(Optional) Configures the threshold for packets-per-second accepted for
encapsulation. The interface drops packets if the configured threshold is
[ | | ]]
pagp lacp udld
exceeded. If no protocol option is specified, the threshold applies to each of
the tunneled Layer 2 protocol types. The range is 1 to 4096. The default is
to have no threshold configured.
Note
Disables CDP on the interface.
Enables BPDU filtering on the interface.
Returns to global configuration mode.
(Optional) Configures the recovery mechanism from a Layer 2
maximum-rate error so that the interface is re-enabled and can try again.
Errdisable recovery is disabled by default; when enabled, the default time
interval is 300 seconds.
(Optional) Configures the CoS value for all tunneled Layer 2 PDUs. The
range is 0 to 7; the default is the default CoS value for the interface. If none
is configured, the default is 5.
Returns to privileged EXEC mode.
Displays the Layer 2 tunnel ports on the switch, including the protocols
configured, the thresholds, and the counters.
(Optional) Saves your entries in the configuration file.
Protocol
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Configuring 802.1Q Tunneling, VLAN Mapping, and Layer 2 Protocol Tunneling
If you also set a shutdown threshold on this interface, the
drop-threshold value must be less than or equal to the
shutdown-threshold value.
Shutdown Drop Encaps
Threshold Threshold Counter
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Decaps Drop
Counter Counter
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