3Com 6416SW manual Uni, Nni, Trs, Sdu

Each 3Com ONcore Switch/Control provides the following functions:

Control plane:

–Support of ATM signaling (SVCs) according to ATM Forum V3.0 and V3.1 specifications.

–

Switch-to-switch interface (SSI) based

on

an extension

of

the

ATM Forum

UNI

V3.0

as

stated

in the ATM

Forum

P-NNI

framework

–

Topology

services

and

route

computation

based on

TRS,

with

automatic bypass

of

failed nodes

and

links

only

for SSI

connections

(TRS is

an

extension

of

OSPF,

Open

Shortest

Path

First.)

–Interconnection of local ATM networks over an ATM WAN that provides a

permanent virtual path, allowing switched connections to be set up between end

systems on both sides of the WAN (VP tunneling)

– Internal SVC APIs to support node management and services over switched ATM connections

–Support of permanent virtual path (VP) and permanent virtual channel (VC) point-to-point connections

–Support of IP over ATM (RFC 1577) for node management and services

(Classical IP); PING message: 916 bytes maximum.

– Support of		802.3 LAN		Emulation	Client for node management and services
(LAN	emulation).		PING	and TELNET	messages: maximum length depends on
the	maximum	SDU	size supported on the corresponding emulated LAN. See
Table 1-2		on page 1-15

1-8 ONcore ATM Switch/Control Module: Installation and User's Guide