Cisco Systems 15310-CL, 15310-MA Assigning the ML-Series Card POS Ports to the SPR Interface

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Cisco ONS 15310-CL and Cisco ONS 15310-MA Ethernet Card Software Feature and Configuration Guide R8.5

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Chapter 14 Configuring Resilient Packet Ring on the ML-Series Card

Configuring RPR

Assigning the ML-Series Card POS Ports to the SPR Interface

Caution The SPR interface is the routed interface. Do not ena ble Layer 3 addresses or assign bridge groups on

the POS interfaces assigned to the SPR interface.

Caution When traffic coming in on an SPR interface needs to be policed, the same input service policy needs to

be applied to both POS ports that are part of the SPR interface.

The POS ports require LEX encapsulation to be used in RPR. The first step of RPR configuration is to

set the encapsulation of POS 0 and POS 1 ports to LEX.

Each of the ML-Series card’s two POS ports must also be assigned to the SPR interface. To configure

LEX encapsulation and assign the POS interfaces on the ML-Series card to the SPR, perform the

following procedure, beginning in global configuration mode:

Step 5 Router(config-if)# carrier-delay msec

milliseconds

(Optional) Sets the carrier delay time. The default setting

is 200 milliseconds, which is optimum for SONET

protected circuits.

Note If the carrier delay time is changed from the

default, the new carrier delay time must be

configured on all the ML-Series card interfaces.

Step 6 Router(config-if)# [no] spr

load-balance { auto | port-based } (Optional) Specifies the RPR load-balancing scheme for

unicast packets. The port-based load balancing option

maps even ports to the POS 0 interface and odd ports to

the POS 1 interface. The default auto option balances the

load based on the MAC addresses or source and

destination addresses of the IP packet.

Step 7 Router(config-if)# end Exits to privileged EXEC mode.

Step 8 Router# copy running-config

startup-config

(Optional) Saves configuration changes to NVRAM.

Command Purpose

Step 1 Router(config)# interface pos 0 Enters the interface configuration mode to configure the

first POS interface that you want to assign to the SPR.

Step 2 Router(config-if)# encapsulation lex Sets POS interface encapsulation as LEX (default). RPR

on the ML-Series card requires LEX encapsulation.

Step 3 ( Router(config-if)# spr-intf-id

shared-packet-ring-number

Assigns the POS interface to the SPR interface. The

shared packet ring number must be 1, which is the only

shared packet ring number that you can assign to the SPR

interface.