Specifications

25
Cisco ONS 15454 Product Overview, R3.3
May 2002
Cisco ONS 15454 Product Overview
TL1
To perform a span upgrade, the higher-rate optical card must replace the
lower-rate card in the same slot. The protection configuration of the original
lower-rate optical card (two-fiber BLSR, four-fiber BLSR, UPSR, and 1+1) is
retained for the higher-rate optical card. The Span Upgrade Wizard automates all
steps in the manual span upgrade procedure for all protection configurations.
TL1
The ONS 15454 supports up to twenty concurrent TL1 sessions that provide the
full range of TL1 commands for provisioning and managing ONS 15454 nodes.
The Cisco ONS 15454 and Cisco ONS 15327 TL1 Command Guide, Release 3.3
provides a complete list of commands, including specific sections devoted to ring
provisioning and alarms and errors.
TL1 Communication
You can enable TL1 in three ways:
• Launch CTC and open a TL1 session to enter TL1 commands.
• Use port number 2361, 3082, or 3083 to access TL1 commands using a telnet
session.
• Use the backplane craft interface or the nine-pin RS-232 port on the TCC+ to
open a VT100 emulation window and enter TL1 commands.
TL1 Gateway and TL1 Test Access
TL1 Gateway enables you to issue TL1 commands to multiple nodes using a single
connection. This means you can now provision other nodes in the network from the
workstation where you are logged in.
TL1 Test Access enables you to monitor and test circuits. Commands to connect,
disconnect, and change the test access (TACC) connections are available.