Cisco 3845 - Security Bundle Router Software Guide

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Cisco ME 3800X and 3600X Switch Software Configuration Guide
OL-23400-01
Chapter 11 Configuring Ethernet Virtual Connections (EVCs)
Configuring Other Features on EFPs
Switch (config-if-srv)# l2protocol tunnel cdp stp vtp dtp pagp lacp
Switch (config-if-srv)# bridge-domain 10
Note To enable tunneling of most Layer 2 protocol, you must configure encapsulation untagged because
Layer 2 protocol PDUs are usually untagged.
EFPs and Ethernet over Multiprotocol Layer Switching (EoMPLS)
When you configure a pseudowire under a VLAN interface (for example, VLAN 33), the pseudowire
becomes a virtual Layer 2 port in that VLAN (VLAN 33), or bridge domain. In this bridge domain, you
can configure other types of Layer 2 ports, such as EFP ports and switchports. Switching functionalities,
such as MAC address learning, flooding, and forwarding to learned MAC addresses, apply to all the
Layer 2 ports, including the pseudowire.
Note When a pseudowire is present in the same bridge domain as an EFP, you cannot configure the EFP with
the rewrite ingress tag pop 2 symmetric service instance configuration command. Other restrictions
about switching between EFPs or between EFPs and switchports also still apply.
See the “EoMPLS and EVC” section on page 34-35 for more information and a configuration example.
Bridge Domain Routing
The switch supports IP routing and multicast routing for bridge domains, including Layer 3 and Layer
2 VPNs, using the SVI model. There are the limitations:
• You must configure SVIs for bridge-domain routing.
• The bridge domain must be in the range of 1 to 4094 to match the supported VLAN range.
• There can be only one EFP in the bridge domain.
• You cannot have any Layer 2 switchports in the VLAN (bridge domain) used for routing.
• You can use bridge domain routing with only native packets.
• MPLS is not supported.
This is an example of configuring bridge-domain routing with a single tag EFP:
Switch (config)# interface gigabitethernet0/2
Switch (config)# switchport mode trunk
Switch (config)# switchport trunk allowed vlan none
Switch (config-if)# service instance 1 Ethernet
Switch (config-if-srv)# encapsulation dot1q 10
Switch (config-if-srv)# rewrite ingress tag pop 1 symmetric
Switch (config-if-srv)# bridge-domain 100
Switch (config)# interface vlan 100
Switch (config-if)# ip address 20.1.1.1 255.255.255.255
This is an example of configuring bridge-domain routing with two tags:
Switch (config)# interface gigabitethernet0/2
Switch (config)# switchport mode trunk
Switch (config)# switchport trunk allowed vlan none
Switch (config-if)# service instance 1 Ethernet

Cisco 3845 - Security Bundle Router Specifications

General

Brand	Cisco
Model	3845 - Security Bundle Router
Category	Switch
Language	English