Cisco Catalyst 4500 Series Software Configuration Guide

30-19
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
Drop Threshold for Encapsulated Packets: 0
Port Protocol Shutdown Drop Encaps Decaps Drop
Threshold Threshold Counter Counter Counter
------------------- ----------- --------- --------- --------- --------- ---------
Gi1/1/11 cdp 1500 1000 2288 2282 0
lldp 1500 1000 0 0 0
stp 1500 1000 116 13 0
vtp 1500 1000 3 67 0
--- ---- ---- ---- ---- ----
--- ---- ---- ---- ---- ----
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Configuring Layer 2 Tunneling for EtherChannels
To configure Layer 2 point-to-point tunneling to facilitate the automatic creation of EtherChannels, you
need to configure both the SP edge switch and the customer switch. This section includes the following
tasks:
• Configuring the SP Edge Switch, page 30-19
• Configuring the Customer Switch, page 30-21
Configuring the SP Edge Switch
Command Purpose
Step 1
Switch# configure terminal
Enters the global configuration mode.
Step 2
Switch(config)# interface
interface-id
Enters interface configuration mode. Enter the interface to be configured as
a tunnel port. This should be the edge port in the service provider network
that connects to the customer switch.
Step 3
Switch(config-if)# switchport
mode dot1q-tunnel
Configures the interface as an 802.1Q tunnel port
Step 4
Switch(config-if)#
l2protocol-tunnel point-to-point
[pagp | lacp | udld]
(Optional) Enables point-to-point protocol tunneling for the desired
protocol. If no keyword is entered, tunneling is enabled for all three
protocols.
Caution To avoid a network failure, make sure that the network is a
point-to-point topology before you enable tunneling for PAgP,
LACP, or UDLD packets.
Step 5
Switch(config-if)#
l2protocol-tunnel
shutdown-threshold
[point-to-point
[pagp | lacp | udld]] value
(Optional) Configures the threshold for packets-per-second accepted for
encapsulation. The interface is disabled 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 drop threshold on this interface, the
shutdown-threshold value must be greater than or equal to the
drop-threshold value.

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