Cisco BPX 8650, Installation And Configuration Manual

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Cisco BPX 8600 Series Installation and Configuration
Release 9.3.30, Part Number 78-12907-01 Rev. E0, May 2005
Chapter 23 Configuring BXM Virtual Switch Interface
VSI Master and Slave Redundancy
VSI Slave Redundancy Mismatch Checking
To provide a smooth migration of the VSI feature on the BXM card, line and trunk Y-redundancy is
supported. You can pair cards with and without the VSI capability as a Y-redundant pair if the feature is
not configured on the given slot. As long as the feature is not configured on a given slot, switch software
will not perform “mismatch checking” if the BXM firmware does not support the VSI feature.
A maximum of two partitions are possible. The card uses a flag in the capability message to report
multiple partition capability. Firmware releases that do not support multiple partitions set this flag to
OFF. The multiple partitions capability is treated as a card attribute and added to the attribute list.
In a Y-red pair configuration, the multiple partition capability is determined by the minimum of the two
cards. A card with no multiple partition capabilities will mismatch if any of the interfaces has an active
partition with ID higher than 1. Attempts to enable a partition with ID higher than 1 in a logical card that
does not support multiple partitions are blocked.
What Happens When You Add a Controller
You add a controller, including Label Switch Controllers, to a node by using the addshelf command. You
add a redundant controller in the same way, except that you specify a partition that may already be in
use by another controller. The
addshelf command allows for the addition of multiple controllers that
manage the same partition.
Use the addctrlr command to attach a controller to a node for the purposes of controlling the node for
controllers that require Annex G capabilities in the controller interface. Note that you must first add the
shelf by using the
addshelf command.
You add VSI capabilities to the interface by using the addctrlr command. The only interface that
supports this capability is an AAL5 feeder interface.
When adding a controller, you must specify a partition ID. The partition ID identifies the logical switch
assigned to the controller. The valid partitions are 1 and 2. The user interface blocks the activation of
partitions with ID higher than 1 if the card does not support multiple partitions.
To display the list of controllers in the node, use the command dspctrlrs .
The functionality is also available via SNMP using the switchIfTable in the switch MIB.
You can add one or more redundant MPLS controllers to one partition, and one or more redundant PNNI
controllers to the other partition.
When using the addshelf command to add a VSI controller to the switch, you must specify the controller
ID. This is a number between 1 and 32 that uniquely identifies the controller. Two different controllers
must always be specified with different controller IDs.
Note The Controller ID for a PNNI controller must be 2.
The management of resources on the VSI slaves requires that each slave in the node has a communication
control VC to each of the controllers attached to the node. When a controller is added to the BPX by
using the
addshelf command, the BCC sets up the set of master-slave connections between the new
controller port and each of the active slaves in the switch.
The connections are set up using a well known VPI.VCI. The value of the VPI is 0. The value of the VCI
is (40 + (
slot - 1)), where
slot
is the logical slot number of the slave. These values are default. You can
modify them by using the addctrlr command.