Juniper Networks JUNOS OS 10.4 - Manual (Page 54)

Figure 6: Designated, Root, and Alternate Ports
Related
Documentation
Ethernet Networking •
• Layer 2 Features for a Bridging Environment on page 21
• Example Roadmap: Configuring a Basic Bridge Domain Environment on page 22
• Example Step: Configuring Interfaces and VLAN Tags on page 24
• Example Step: Configuring Bridge Domains on page 30
• Example Step: Configuring Integrated Bridging and Routing on page 34
Example Step: Configuring Integrated Bridging and Routing
Router 2 and Router 3 on the bridging network act as a kind of gateway to the Layer 3
routers in the rest of the network. Router 2 and Router 3 must be able to route packets
as well as bridge frames. This requires the configuration of integrated routing and bridging
(IRB) on Routers 2 and 3. The link to the router network is
xe-2/1/0 on Router 2 and
xe-1/1/0 on Router 3.
You configure IRB in two steps:
1. Configure the IRB interface using the irb statement.
2. Reference the IRB interface at the bridge domain level of the configuration.
Copyright © 2013, Juniper Networks, Inc. 34
Junos OS 13.1 MX Series 3D Universal Edge Routers Solutions Guide