Cisco IOS XR System Management Command Reference, Release 3.4
Distributed Route Processor Commands on Cisco IOS XR Software
Downloads: This chapterpdf (PDF - 397.0KB) The complete bookPDF (PDF - 5.84MB) | Feedback

Distributed Route Processor Commands on Cisco IOS XR Software

Table Of Contents

Distributed Route Processor Commands on Cisco IOS XR Software

location (drp)

pairing (drp)


Distributed Route Processor Commands on Cisco IOS XR Software


DRPs can be installed individually or in pairs. This module describes the commands used to create redundant DRP pairs.

DRP Overview

The distributed route processor (DRP) card and its associated physical layer interface module (PLIM) function as an additional route processor (RP) in the Cisco CRS-1. The DRP does not perform any of the control and management functions performed by the RP; therefore, it can never be the designated shelf controller (DSC) in a multishelf system. However, the DRP can be configured for the following purposes:

The DRP can act as the designated secure domain router shelf controller (DSDRSC) in a secure domain router (SDR). An SDR is a part of the Cisco CRS-1 routing system that functions as a complete router, running its own routing protocols and forwarding IP packets between its interfaces.

DRPs are not supported on the Cisco XR 12000 Series Router in Cisco IOS XR Software Release 3.4.

SDRs were previously known as Logical Routers (LRs). The name was changed beginning with Cisco IOS XR Software Release 3.4.

The DRP can provide additional processing capacity for any of the routing processes that run on the RP (for example, BGP, OSPF, IS-IS, MPLS, LDP, IP multicast, and so on).

Related Documents

For additional information, refer to the following Cisco Systems documents:

Related Topic
Document Title

Instructions to use of DRPs in a secure domain router configuration

Configuring Secure Domain Routers on Cisco IOS XR Software. This module is part of the Cisco IOS XR System Management Configuration Guide.

Instructions to configure process placement and DRPs.

Process Placement on Cisco IOS XR Software. This module is part of the Cisco IOS XR System Management Configuration Guide.

DRP hardware description and requirements.

Cisco CRS-1 Carrier Routing System 16-Slot Line Card Chassis System Description

Instructions to install DRP and DRP PLIM cards.

Installing the Cisco CRS-1 Carrier Routing System 16-Slot Line Card Chassis


location (drp)

To assign nodes to a DRP pair, use the location command in DRP pairing configuration mode. To remove the node from a DRP pair, use the no form of this command.

location partially-qualified-nodeid partially-qualified-nodeid

no location

Syntax Description

partially-qualified-nodeid

Specifies the nodes to be assigned to the specified DRP pair.

The node-id argument is entered in the rack/slot/* notation. Nodeids are always specified at the slot level, so the wildcard (*) is used to specify the CPU.


Defaults

No default behavior or values

Command Modes

DRP pairing configuration

Command History

Release
Modification

Release 3.3.0

This command was introduced on the Cisco CRS-1.

Release 3.4.0

No modification.


Usage Guidelines

To use this command, you must be in a user group associated with a task group that includes the proper task IDs. For detailed information about user groups and task IDs, see the Configuring AAA Services on Cisco IOS XR Software module of the Cisco IOS XR System Security Configuration Guide.

Use the location command in DRP pairing configuration mode to assign nodes to a DRP pair. The following rules apply to DRP pairing assignments:

To create a DRP pair name, use the pairing (drp) command.

Two nodes are assigned to each DRP pair. For example: location 0/2/* 0/3/*.

DRPs are always specified at a slot level. The wildcard (*) is used to specify the CPU.

To be added to a DRP pair, the node-id must belong to the owner SDR. If a node is already assigned to a non-owner SDR, the node must be removed from the non-owner SDR before it can be assigned to a DRP pair.

A node-id cannot be used by more than one DRP pair.

Only two nodes can be assigned to a DRP pair. In the following example, only the last location 0/0/* 0/4/* will take effect.

(admin-config)# pairing pair1
(admin-config-pairing:pair1)# location 0/1/* 0/4/*
(admin-config-pairing:pair1)# location 0/0/* 0/4/*
(admin-config-pairing:pair1)# commit

Use the no form of the location command to remove both nodes from the DRP pair. Removing a node from a DRP pair implicitly returns it to the owner SDR. When a node has been removed from an SDR, it can be reassigned to another SDR.

Task ID

Task ID
Operations

system

read/write


Examples

The following example shows how to enter DRP pairing configuration mode, create a DRP pair named "drp1", and assign node 0/3/* and node 0/4/* to the DRP pair:

RP/0/1/CPU0:router# admin
RP/0/1/CPU0:router(admin)# configure
RP/0/1/CPU0:router(admin-config)# pairing drp1
RP/0/1/CPU0:router(admin-config-pairing:drp1)# location 0/3/* 0/4/*
 
   

The following example shows how to remove a DRP pair:

RP/0/1/CPU0:router# admin
RP/0/1/CPU0:router(admin)# configure
RP/0/1/CPU0:router(admin-config)# pairing drp1
RP/0/1/CPU0:router(admin-config-pairing:drp1)# no location

Related Commands

Command
Description

sdr

Creates an SDR or modifies an existing SDR.

pairing (drp)

Creates a DRP pair name or modifies an existing DRP pair (Cisco CRS-1 only).

location (SDR)

Adds or removes a node from a secure domain router configuration.

pair (SDR)

Adds or removes a DRP pair from a secure domain router configuration (Cisco CRS-1 only).


pairing (drp)

To specify a distributed route processor (DRP) pair and enter DRP pairing configuration mode, use the pairing command in Administration configuration mode. To remove a named DRP pair from the configuration, use the no form of this command.

pairing pair-name

no pairing pair-name

Syntax Description

pair-name

Name of the DRP pair. The name can a maximum of 32 alphanumeric characters. The characters "_" or "-" are also allowed. All other characters are invalid.


Defaults

No default behavior or values

Command Modes

DRP pairing configuration

Command History

Release
Modification

Release 3.3.0

This command was introduced on the Cisco CRS-1 router.

Release 3.4.0

No modification.


Usage Guidelines

To use this command, you must be in a user group associated with a task group that includes the proper task IDs. For detailed information about user groups and task IDs, see the Configuring AAA Services on Cisco IOS XR Software module of the Cisco IOS XR System Security Configuration Guide.

Use the pairing pair-name command to create a DRP pair or modify an existing DRP pair.


Note The pair-name argument creates a DRP pair if the pair-name specified does not already exist.


After the pairing pair-name command is issued, the router enters DRP pairing configuration mode. From DRP pairing configuration mode, you can specify the nodes for the DRP pair using the location (drp) command. The locations specified are added to the DRP pair, or modify the existing pair.

Use the no form of the command to remove a DRP pair configuration. When a DRP pair is removed from the configuration, the nodes are returned to the owner SDR.

Task ID

Task ID
Operations

system

read/write


Examples

The following example shows how to enter DRP pairing configuration mode to configure a DRP pair:

RP/0/1/CPU0:router# admin
RP/0/1/CPU0:router(admin)# configure
RP/0/1/CPU0:router(admin-config)# pairing drp1
RP/0/1/CPU0:router(admin-config-pairing:drp1)# location 0/3/* 0/4/*
 
   

The following example shows how to remove a DRP pair:

RP/0/1/CPU0:router# admin
RP/0/1/CPU0:router(admin)# configure
RP/0/1/CPU0:router(admin-config)# no pairing drp1

Related Commands

Command
Description

location (drp)

Adds or removes nodes from a DRP pair.

sdr

Creates or modifies an existing secure domain router.

location (SDR)

Adds or removes a node from an SDR configuration.

pair (SDR)

Adds or removes a DRP pair from an SDR configuration.