 | Copyright © 2008, Juniper Networks, Inc. All rights reserved. Trademark Notice. | |
To configure line module redundancy on the E120 router or the E320 router, you must also install an ES2-S1 Redund IOA in either slot 0 or slot 11. The ES2-S1 Redund IOA is a full-height IOA. For a detailed explanation of how the router provides redundancy for line modules and procedures for installing the modules, see the E120 and E320 Hardware Guide.
On E120 and E320 routers, each side of the chassis is treated as a redundancy group. The lowest numbered slot for each side acts as the spare line module, providing backup functionality when an ES2-S1 Redund IOA is located directly behind it. When the line module does not contain an ES2-S1 Redund IOA, it is considered a primary line module.
The spare line module only backs up a line module of the same type. For example, an ES2 4G LM spare line module backs up any ES2 4G LM, but does not back up an ES2 10G Uplink LM. The router accepts the following redundancy groups:
Also, you cannot configure redundancy for the ES2-S1 Service IOA.
| Copyright © 2008, Juniper Networks, Inc. All rights reserved. Trademark Notice. | |