Cisco Catalyst 4500 Series Software Configuration Guide

30-20
Catalyst 4500 Series Switch, Cisco IOS Software Configuration Guide - Cisco IOS XE 3.9.xE and IOS 15.2(5)Ex
Chapter 30 Configuring 802.1Q Tunneling, VLAN Mapping, and Layer 2 Protocol Tunneling
Configuring Layer 2 Protocol Tunneling
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 Protocol Shutdown Drop Encaps Decaps Drop
Threshold Threshold Counter Counter Counter
------------------- ----------- --------- --------- --------- --------- ---------
Gi1/1/11 --- ---- ---- ---- ---- ----
--- ---- ---- ---- ---- ----
--- ---- ---- ---- ---- ----
--- ---- ---- ---- ---- ----
Step 6
Switch(config-if)#
l2protocol-tunnel drop-threshold
[point-to-point [pagp | lacp | udld]]
value
(Optional) Configures the threshold for packets-per-second accepted for
encapsulation. The interface drops packets if the configured threshold is
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 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.
Step 7
Switch(config-if)# no cdp enable
Disables CDP on the interface.
Step 8
Switch(config-if)# spanning-tree
bpdufilter
Enables BPDU filtering on the interface.
Step 9
Switch(config)# exit
Returns to global configuration mode.
Step 10
Switch(config)# errdisable
recovery cause l2ptguard
(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.
Step 11
Switch(config)# l2protocol-tunnel
cos value
(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.
Step 12
Switch(config)# end
Returns to privileged EXEC mode.
Step 13
Switch# show l2protocol
Displays the Layer 2 tunnel ports on the switch, including the protocols
configured, the thresholds, and the counters.
Step 14
Switch# copy running-config
startup-config
(Optional) Saves your entries in the configuration file.
Command Purpose

Cisco Catalyst 4500 Series Specifications

General

Series	Catalyst 4500 Series
Category	Switch
Layer Support	Layer 2, Layer 3
Form Factor	Modular chassis
Stackable	No
Chassis Slots	3, 6, 7, 10
Power Supply Options	AC, DC
Redundancy	Power supply, Supervisor engine
Network Management	Cisco IOS Software CLI, SNMP, Cisco Prime Infrastructure
Features	Security, QoS
Port Density	Up to 384 ports per chassis
Security Features	802.1X, ACLs, DHCP Snooping, Dynamic ARP Inspection, IP Source Guard
Supervisor Engine	8-E