Filter
Top Products
5-12
Cisco BPX 8600 Series Installation and Configuration
Release 9.3.10, Part Number 78-11603-01 Rev. D0, July 2001
Chapter 5 BXM Card Sets: T3/E3, 155, and 622
60K LCN Support for VSI on Enhanced BXM Cards
Features/Benefits
Functions
The following is the highlights of the features provided by this project:
Provides the capability to support 60K VSI LCNs on BXM-E cards while giving the option for the user
to keep the previous 32K LCNs configuration.
Provides the hitless upgrading from an active BXM-E configured in 32K LCN mode to 60K VSI LCN
mode.
Provides the capability to tell if a BXM-E card is already scaled up to support 60K VSI LCN.
RESTRICTIONS
Scope and Inter-dependencies
Scope
This feature will be available on the BPX 9.3.30 SWSW revision, the BXM-E card must support 60K
LCNs.
Environment
This feature will require:
BPX Switch Software Release 9.3.30 which is targeted for Q2’01
BXM-E model EX or DX hardware with firmware revision supporting VSI.
BCC-4 controller card.
Usage
MPLS or PNNI user who wants to increase the number of VSI LCNs for a BXM-E slot to 60K need to
upgrade their Switch Software to this release.
User who currently has legacy BXM cards need to upgrade those to BXM-E cards (model EX or DX)
following the procedure for “Hitless Upgrade of BXM to BXM-E” [3]. This procedure is documented
in release 9.3.00 which applies to this release and onward. The result of this upgrade is that the
maximum number of LCNs will still be capped at 32K.
The user can use the CLI command cnfcdparm <slot> 2 Y to scale up the VSI LCN to 60K for the
<slot>. If the <slot> has been scaled up to support 60K VSI LCN and the BXM-E card in the <slot> is
in Standby status, the user can scale that slot back to support 32K LCN by using CLI command
cnfcdparm <slot> 2 N.
Compatibility
ThisfeatureistoallowaneasywaytoconfiguretheVSILCNto60KforBXM-Ecard.Thereisno
issue of incompatibility whatsoever in this project. However, this project introduces new scenarios of
mismatch for BXM cards:
When a BXM-E slot, which has been configured to support 60K VSI LCN, is replaced by another card
with lower channel density, mismatch will be declared.
When BXM-E cards are configured as y-redundancy or 1+1 APS, these Y-red pairs have been
configured for 60K VSI LCN support, if one card of Y-red pairs is replaced by another card with lower
channel density, mismatch will be declared.