Chapter 10 Managing PNNI Routing

PNNI Global Topology Information

General topology information

To show the global topology information, use the following command:

Command:

Output:

M15-155s2/>route pnni topology general

Global PNNI topology information

 

 

 

 

+------------------

 

+-------------------

+--------------------

+-------

+

Horizontal Links

Nodes

Reachable Addresses Ptses

+--------

+---------

+---------

+---------

+---------

+----------

+-------

+

Not

 

Not

RoutableRoutable

ReachableReachable InternalExterior

+--------

+---------

+---------

+---------

+---------

+----------

+-------

+

2

0

4

0

9

3

22

+--------

+---------

+---------

+---------

+---------

+----------

+-------

+

The output of this command provides tabular general information about the entire PNNI domain: number of horizontal links, nodes and reachable addresses, and the number of PTSEs in the local database. It distinguishes between horizontal links that are routable and those that are not routable. A horizontal link is a bi-directional connection between two adjacent PNNI nodes. The information about a link is derived from two Horizontal Link PTSEs which represent the two uni-directional connections. A link may be non-routable if:

The paired link (the link on the other direction) doesn’t exist, i.e. a Horizontal Link PTSE describing the other direction doesn’t appear in the local database.

The remote node doesn’t appear in the local database (it’s Nodal Info PTSE was not received).

Note: In heirarchical PNNI configuration, uplinks known to this node are not shown in the output above. To see Uplinks information, see the Global Topology Uplink command on page 130.

In addition, the table distinguishes between nodes that are reachable, and those that are not reachable. Reasons for a node to be non-reachable are:

One or more PTSEs generated by this node were received at the local node, but the Nodal Info PTSE of that node was not one of them.

The Nodal Info PTSE of that node was received, however, there is no valid route to that node. A route may be non-valid if one or more links on that route are non-routable.

A node may be non-reachable if one of the nodes on the path is a non-transit node.

Reachable addresses are grouped to Internal and Exterior Reachable Addresses (RAs). Internal RAs are ATM addresses that are part of the PNNI domain. The switches learned them using ILMI and advertised them in Internal RA IGs. Exterior RAs are ATM addresses that are not part of the PNNI domain. They were learned

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Avaya M770 ATM Switch User’s Guide

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Avaya M770 manual Pnni Global Topology Information, General topology information

M770 specifications

The Avaya M770 is a highly advanced media processor that is part of Avaya's robust suite of communication solutions designed for enterprise environments. This powerful device caters to the needs of modern businesses, providing an efficient platform for managing voice, video, and data communications.

One of the standout features of the Avaya M770 is its high-density processing capability. The device can handle a significant volume of calls concurrently, which makes it an ideal solution for large organizations requiring a reliable communication backbone. The M770 supports a variety of codecs, ensuring high-quality audio and video transmission, which is pivotal for maintaining clarity during communication.

Incorporating cutting-edge technologies, the Avaya M770 is built upon a scalable architecture that allows for easy expansion as business needs evolve. This scalability means organizations do not have to invest in new equipment every time they grow; they can simply add additional resources to the existing system. This makes the M770 a cost-effective solution in the long run.

The M770 also boasts advanced security features, essential for protecting sensitive communications within a business. It employs encryption protocols to safeguard data and voice transmissions, ensuring that corporate information remains secure from potential cyber threats. This focus on security is increasingly critical in today's interconnected world, where data breaches can have devastating consequences.

Another notable characteristic of the Avaya M770 is its integration capabilities. The device can seamlessly connect with Avaya’s suite of applications and third-party solutions, enabling businesses to create a unified communications environment tailored to their specific needs. This interoperability allows for a more streamlined workflow, enhancing productivity within the organization.

Furthermore, the M770 features intuitive management tools that simplify the administration of telephony systems. With a user-friendly interface, IT administrators can easily monitor performance, manage resources, and troubleshoot issues. This ease of use reduces the time and effort needed for system management, allowing IT teams to focus on strategic initiatives.

In conclusion, the Avaya M770 is a comprehensive media processing solution that combines scalability, security, and ease of integration to meet the demands of contemporary enterprises. With its ability to support high-density communications and its advanced management capabilities, it serves as a critical asset for businesses looking to enhance their communication infrastructure.