Cisco SCE 8000 User Manual

6-19
Cisco SCE8000 GBE Installation and Configuration Guide
Chapter 6 Cabling the Line Ports and Completing the Installation
Cascaded Systems
Cascaded Systems
This section contains the following topics:
• How to Install a Cascaded System, page 6-19
• CLI Commands for Cascaded Systems, page 6-20
How to Install a Cascaded System
This section outlines the installation procedures for a redundant solution with two cascaded
Cisco SCE 8000 platforms. See the Cisco SCE8000 CLI Command Reference for details of the CLI
commands.
When working with two Cisco SCE 8000 platforms with split-flow and redundancy, it is extremely
important to follow this installation procedure.
Step 1 Install both Cisco SCE 8000 platforms, power them up, and perform the initial system configuration.
(See Chapter 4, “Installing the Cisco SCE 8000 Chassis”and Chapter 5, “Connecting the Management
Interfaces”and the “Starting the Cisco SCE 8000 Platform” section on page 7-2.)
To maintain link continuity at all times, including during the reload sequence and power failure events,
it is recommended to install optical bypass modules.
Step 2 Connect both Cisco SCE 8000 platforms to the management station. (See Connecting the Management
Interfaces, page 5-5.)
Step 3 Connect the cascade ports. (See Dual Link: Two Cisco SCE 8000s Topology, page 6-3.)
The cascade ports must be either be connected directly in Layer 1 (dark fibers), or using the following
procedure to connect through a switch:
a. Connect port 3/2/0 from box A and port 3/3/0 from box B to a single switch. Configure them both
on the same access VLAN, which is used only by the interfaces connected to these ports. No other
interfaces in the switch should reside on that VLAN.
b. Connect port 3/3/0 from box A and port 3/2/0 of box B to a switch on a different VLAN. Again, the
access ports should be configured as access ports on this VLAN, which are used only by the
interfaces connected to these ports. No other interfaces in the switch reside on the VLAN.
Step 4 Set topology configurations for each Cisco SCE 8000 platform via the connection-mode options. (See
How to Configure the Connection Mode, page 6-21.)
Step 5 Make sure that the Cisco SCE 8000 platforms have synchronized and the active Cisco SCE 8000
platform was selected.
Use the show interface linecard 0 connection-mode command.
Step 6 If you want to start with bypass, change the link mode to your required mode in both Cisco SCE 8000
platforms on both links. The bypass mode is applied only to the active Cisco SCE 8000 platform. (See
How to Set the Link Mode, page 6-21.)
Step 7 Ensure that the link mode complies with what you required. (See Monitoring a Cascaded System,
page 6-22.)
Use the show interface linecard 0 link mode command.
Step 8 Connect the traffic port of Cisco SCE 8000 platform 1. This causes a momentary down time until the
network elements from both sides of the Cisco SCE 8000 platform auto-negotiate with it and starts
working (when working inline). (See Dual Link: Two Cisco SCE 8000s Topology, page 6-3.)

Cisco SCE 8000 Specifications

General

Brand	Cisco
Model	SCE 8000
Category	Switch
Language	English