Cisco ONS 15454 - Table 2-4 Gateway Resource Pool; Table 2-5 Examples of Ideal ENE to GNE Resource Allocations

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Cisco ONS SONET TL1 Command Guide, R6.0
Chapter 2 Procedures and Provisioning
2.3.3 TL1 Gateway and ENE Sessions
You can dynamically distribute the maximum number of ENE sessions to balance the number of
concurrent gateway communication sessions. The GNE treats the concurrent gateway communication
sessions and ENE/GNE limit as a resource pool. It continues to allocate resources until the pool is
exhausted. When the pool is exhausted, the GNE returns an “All Gateways in Use” message or an “All
ENE Connections in Use” message.
Note The speed of the TL1 gateway and the maximum number of connections are limited by shared system
resources, such as CTC, CTM, etc. The response time is slow as connections are increased and activity
on these connections increases. Alarm storms, additional users, netwoork latency, etc. also increase
response time.
Cisco ONS 15600 allows up to 500 ENEs per GNE session from Software Release 6.0 and higher.
The gateway resource pools for each platform are shown in Table 2-4.
Note Every ENE over an OSI DCC is equivalent to two ENEs over an IP DCC. If you use a combination of IP
and OSI ENE sessions, it is important to remember that the maximum number of ENEs supported is
equal to the number if IP ENEs plus two times the number of OSI ENEs (IP + 2*OSI).
For example, for Cisco ONS 15454 GNE, if you use 100 ENEs over IP DCC, then you can use only
38 ENEs over OSI DCC (100 + 2*38 = 176). For Cisco ONS 15310-MA GNE, if you use 30 ENEs over
OSI DCC, then you can use only 52 ENEs over IP DCC (2*30+52 = 112).
Examples of GNE/ENE resource alocation are provided in Table 2-5.
Table 2-4 Gateway Resource Pool
Platform
Maximum Number of
GNE Sessions
Maximum Number of
ENEs over IP DCC
Maximum Number of
ENEs over OSI DCC
Cisco ONS 15454 11 (10 + 1) 176 20
Cisco ONS 15310-CL 6 (5 + 1) 92 20
Cisco ONS 15310-MA 7 (5 + 2) 112 20
Cisco ONS 15600 12 (10 + 2) 192 (500) 20
Table 2-5 Examples of Ideal ENE to GNE Resource Allocations
Applicable Cards
Number of GNE
Communication
Sessions
Number of
ENEs over IP
DCC
Number of
ENEs over
OSI DCC
15454 (TCC/TCC+/TCC2/TCC2P), 15310-CL (CTX),
15310-MA (CTX-2500), 15600 (TSC)
11616
15454 (TCC/TCC+/TCC2/TCC2P), 15310-CL (CTX),
15310-MA (CTX-2500), 15600 (TSC)
23220
15454 (TCC/TCC+/TCC2/TCC2P), 15310-CL (CTX),
15310-MA (CTX-2500), 15600 (TSC)
34820
15454 (TCC/TCC+/TCC2/TCC2P), 15310-CL (CTX),
15310-MA (CTX-2500), 15600 (TSC)
46420