Cisco ONS 15454 - TL1 Sessions; TL1 Gateway and ENE Sessions; Figure 2-25 Example of a GNE Topology; Table 2-3 Number of TL1 Sessions Per Platform

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Cisco ONS SONET TL1 Command Guide, R6.0
Chapter 2 Procedures and Provisioning
2.3.2 TL1 Sessions
Figure 2-25 Example of a GNE Topology
2.3.2 TL1 Sessions
Each NE can support up to a maximum of 20 concurrent communication sessions (connections from an
OS/NE to the GNE). The TL1 connections can be made through telnet sessions from the LAN or from
the craft/serial port connection on the NE. One TL1 session is reserved for the active serial port
connection. The remaining 19 sessions are used for TL1 sessions through the LAN (wire-wrap, active
serial port, or DCC). Table 2-3 shows the number of serial port and LAN connections per platform.
2.3.3 TL1 Gateway and ENE Sessions
Only a limited number of TL1 users logged into an NE at any given time can establish sessions to other
ENEs. The active serial port sessions are reserved and can always become a GNE session. The number
of ENE sessions is based on the number of gateway communications sessions (GNE sessions).
Each NE can support up to 12 concurrent communication gateway sessions, depending on the NE type.
The maximum number of ENE sessions also varies depending on the NE type.
55276
Number of connections
Node 1 Node 2
OSS
Node 3
Autonomous messages
TLI Gateway node
Single connection
Command/Response
Table 2-3 Number of TL1 Sessions per Platform
Platform
Number of Serial Port
Sessions
Number of LAN
Sessions
Total Number of TL1
Sessions
Cisco ONS 15454 1 19 20
Cisco ONS 15310-CL 1 19 20
Cisco ONS 15310-MA 2 18 20
Cisco ONS 15600 2 18 20