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Interfaces underlie the physical and network layer protocols. The type of interface depends on the type of port configured. The Avici router supports the following interface types:
- POS (Packet Over SONET/SDH) interfaces support Layer 3 IP traffic. Some POS interfaces support frame relay over SONET.
- Composite links are of groups of POS interfaces associated into a composite link. Composite links enable you to easily add bandwidth to a link. When you add a new member link to a composite link, you do not need to configure the routing protocols over the member link. Composite links map large numbers of destinations to a single composite link instead of mapping to specific output ports. If a member-link fails, and sufficient bandwidth is available on other member links, traffic is dynamically shifted to the other member links.
- Gigabit Ethernet interfaces interconnect to other Gigabit Ethernet compliant devices.
- A single Ethernet interface to support attachment of customer network management entities to the Avici router server. This interface provides IP host functions and does not support routing.
- 4 internal Ethernet interfaces. These interfaces are used for communications internal to the Avici router. These interfaces can not be configured, nor do they support routing.
- Multiple virtual loopback interfaces allow you to disconnect the operation of routing protocols from network hardware operation and thereby improve the reliability of IP connections.
- Null interfaces provide a black hole where IP routing protocols can discard undesirable routes. Null interfaces do not require any configuration.
Use the commands in this chapter to define, configure, display, and delete Avici router interfaces and composite links.
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Copyright © 2005
Avici Systems Inc.
Avici® and TSR®
is a registered trademark of Avici Systems Inc.
IPriori™, Composite Links™, SSR™, QSR, and NSR® are
trademarks of Avici Systems Inc.
Source
File Name: Interface_Cmd.fm
HTML File Name: Interface_Cmd.html
Last Updated: 02/25/05 at 14:28:34