Carrier Access CMG Router user manual Static Networks

Profile Directory:Local Profile

Static Networks

Static Networks

Static networks allow fixed, or pre-determined routes, which increases the control over routing choices within your network. Although Adit units are able to dynamically learn routing information through RIP packets, you may wish to disable this feature and manually enter fixed routes. (Disable Learning by choosing the <Neither> option in the LAN Network Updates field on the Local (LAN) Profile Setup screen.) Static routing may be preferred if:

Routers within a network are not configured to advertise, thereby escaping the automatic learning capabilities of the Adit unit

Advertising is disabled so that access to certain networks may be restricted for security purposes or, to decrease traffic on the LAN and across the WAN

You wish to keep routing tables small in order to increase LAN/WAN performance

Static routing may also be preferable when managing large networks. Often times it is easier to disable the learning mode and manually enter routes, rather than review each routing table entry and determine its advertising status.

As a static routing example, let’s assume that we have three networks, A, B and C. Network B, is connected to Network C via a router, and to Network A via a remote Adit. Network B may not learn of Network A’s existence if advertising was disabled on Router 1. Therefore, if you wish to establish an entry in the routing table indicating a route between Network B and Network C, you can define a static route on Network B.

Network A

Unit

A

Network B

Unit

B

Router1

Network C

Entera static route which indicates thatNetwork C may be reached through remote Unit B.

Entera static route which indicates thatNetwork C may be reached through Router1.

4-10 CMG Router - Release 2.7