Big Red Handbook for Maintaining a PNNI Network (eBook)

Ashlan Chidester (Autor)

eBook Download: EPUB

2025 | 1. Auflage
89 Seiten
Publishdrive (Verlag)
978-0-00-105115-7 (ISBN)

Infos

Technical reference manual documenting BPX and SES command-line interface operations for PNNI network maintenance. Contains BPX configuration commands for trunk parameter modification (cnftrk), port configuration (cnfport/dspport), VSI resource partition management (cnfrsrc/dsprsrc), and service class template assignment. SES configuration commands include ANNEX-G protocol status monitoring (dsplmilink), PNNI node configuration (dsppnni-node), neighbor relationship management (dsppnni-neighbor), and port signaling configuration (cnfpnportsig).

Troubleshooting procedures address PNNI link state failures, Hello packet transmission issues, port provisioning states, SPVC/SPVP routing failures, AIS-FAIL conditions, and VPI/VCI allocation conflicts. Connection Admission Control documentation covers GCAC/ACAC implementation, booking factor calculations for bandwidth oversubscription/undersubscription, and per-class resource allocation algorithms.

Command reference sections detail ILMI protocol configuration, SSCOP signaling channel establishment, RCC control channel programming, VSI partition resource allocation, and OAM segment endpoint configuration. Includes diagnostic command syntax for path tracing (conntrace), connection statistics (dspconstats), and network topology verification.

Operational procedures for BXM/SES integration, controller addition sequences, ANNEX-G LMI establishment, and PNNI neighbor adjacency formation. Technical specifications for ATM cell processing, VPI/VCI range assignment, bandwidth allocation algorithms, and LCN resource management across VSI partitions.

Textauszug

SES Configuration Commands

 

dsplmilink

Description

The dsplmilink command is used to display the current status of the ANNEX-G protocol between the SES and the attached BPX.

 

ses1.1.PXM.a > dsplmilink

TRK  Current Alarm Status  Other End

 

1.1  CLEAR  b1/10.3

 

 

Relevant Parameters/Options

Current Alarm Status:                This is the current status of the trunk between the SES and the attached BPX.  For normal operation, this field should be CLEAR.

Other End:                This is the nodename of the attached BPX and the associated trunk that the SES is attached.

 

dsppnni-node

Description

The dsppnni-node command is used to display the nodal configuration about the SES controller.

ses1.1.PXM.a > dsppnni-node

 

node index: 1  node name: ses1  

 Level...............  56  Lowest..............  true

 Restricted transit..  off  Complex node........  off

 Branching restricted  on

 Admin status........  up  Operational status..  up

 Non-transit for PGL election..  off

  

Node id...............56:160:47.009181000000003071f80bab.003071f80bab.01

 ATM address...........47.009181000000003071f80bab.003071f80bab.01

 Peer group id.........56:47.00.9181.0000.0000.0000.0000.00

 

Relevant Parameters/Options

Node name:                This is the configured name of the SES controller.

Level:                This is the configured PNNI level for this controller.  This is used in the PNNI hierarchy.

Node id:                This is the PNNI node id for this SES controller. It is typically derived from the ATM address.  The node id consists of the following:

56                Default level for  SES

160                Level indicator of the Child Peer Group.  For flat networks using NSAP addressing, this is always 160.

47                1-byte AFI (Authority and format identifier) for ICD (International Code Designator)*

0091                2-byte specific ICD*

81000000                4-byte specific information*

003071f80bab                6-byte Switch ID that is the unique MAC address of the SES PNNI node used to distinguish multiple PNNI-enabled switching nodes.

003071f80bab                6-byte ESI (End System Identifier).  This field repeats the PNNI Controller MAC address when the ATM address identifies the PNNI switching node.  If the end system is an ATM CPE, this address is typically the CPE’s MAC address or a uniquely defined 6-byte address for that CPE.

01                1-byte NSAP Selector that is typically used to identify classical IP interfaces that use the same physical interface (00).

*                These fields must be changed to reflect the specific customer’s registered address space!

 

ATM address:                This is the actual 20 byte ATM address of the SES controller.  This address must be unique in the PNNI network. It is equal to the node ID, without the Level or  Level indicator (47 and 160, in this case).

Peer group id:                The peer group id is used to determine which PNNI nodes are in a particular peer group.  For a flat PNNI network, this needs to be the same for all nodes.

 

 

dsppnni-node-list

Description

The dsppnni-node-list command is used to display the list of reachable PNNI nodes.

 

ses1.1.PXM.a > dsppnni-node-list

 

node #  node id  node name

------- -------------------------------------------------- ----------

 1  56:160:47.009181000000003071f80bab.003071f80bab.01 ses1  

 

node #  node id  node name

------- -------------------------------------------------- ----------

 2  56:160:47.009181000000003071f800e3.003071f800e3.01 ses2  

 

 

Relevant Parameters/Options

Node #:                This is used to index each reachable node.  This number is locally significant and has no correlation to the switch software node number.

dsppnni-neighbor

Description

The dsppnni-neighbor command is used to display the list of reachable PNNI neighbors.

 

ses1.1.PXM.a > dsppnni-neighbor

 

node index  : 1

 

node name  : ses2  

Remote node id: 56:160:47.009181000000003071f800e3.003071f800e3.01

Neighbor state: FULL  

 Port count..........  1  SVC RCC index.......  0

 RX DS pkts..........  3  TX DS pkts..........  2

 RX PTSP pkts........  16  TX PTSP pkts........  15

 RX PTSE req pkts....  1  TX PTSE req pkts....  1

 RX PTSE ack pkts....  14  TX PTSE ack pkts....  11

 

 

Relevant Parameters/Options

 

Neighbor state:                This is the current state of the neighbor and should be FULL.

FULL – This state indicates that the synchronization of the PTSE (PNNI Topology State Elements) databases has been completed.

NEGOTIATING - This state indicates the two neighbors are in the process of determining which will become the master in the dialogue to exchange their PTSE database.  PNNI specifies the node with the larger numerical value of its Node ID is the master during the neighbor database synchronization procedure.  Staying in this state with an extended time period usually indicates a possible loss of PNNI Database Summary packets or a packet format problem.

EXCHANGING - This state indicates the two neighbors are in the process of exchanging PTSEs stored in their own database.  This state should also be a transit state; otherwise, it may indicate loss of PNNI Database Summary packets or packet format problem.

LOADING - This state indicates the local node is in the process of reading one or more PTSEs from the peer into its local database. This state should also be a transit state; otherwise, it may indicate the loss of PNNI Database Summary packets sent from the peer or there is a large amount of the PTSEs that need to be...

Produkt-Details

• Erscheint lt. Verlag: 4.9.2025
• Sprache: englisch
• Themenwelt: Technik ► Nachrichtentechnik
• ISBN-10: 0-00-105115-6 / 0001051156
• ISBN-13: 978-0-00-105115-7 / 9780001051157