Connection Limit Adjustments - Cisco Network Router User Manual

Connection Limit Adjustments

Table 2-2 PNNI Networking Specifications for SES Equipped BPX Switches (continued)
Capabilities
Total connections per switch (SVCs
1
and SPVCs)
Physical ATM interfaces per switch
(maximum)
Preferred routes per switch
(maximum)
P2MP root connections per switch
P2MP branches per switch
P2MP parties allowed per root
connection
P2MP parties per switch
1. Connections limits are calculated differently for a switch and for CWM. For more information,
refer to the following section,
2. SES equipped BPX switches do not support branching.
Connection Limit Adjustments
For MGX software Release 3.0 and above, and CWM Release 12.0, Patch 1 and above, the unit for
connection limits is different for the switch and for CWM.
The connection limit adjustments described in this section apply only to CWM-managed switches. If you
Note
are not using CWM to manage switches, you can ignore this section.
For switches, the connection limit units are connections. For CWM, the connection limit units are
persistent endpoints. For example, a switch can support 250K connections, and CWM can support 250K
persistent endpoints per switch.
Table 2-3
Table 2-3
Connection Type
SVC
Pass-through
connection
Routed SPVC
DAX SPVC
1. Pass-through connections are connections that do not terminate on a switch. These connections
2. A digital cross-connect (DAX) SPVC is an SPVC built between two interfaces on the same switch.
Cisco PNNI Network Planning Guide for MGX and SES Products, Release 5
2-4
SES 1.0 SES 1.1
50 K 50 K
100 100
— —
— —
— —
— —
— —
"Connection Limit Adjustments."
shows how the switch and CWM account for each connection type.
Switch and CWM Connection Units for Each Connection Type
Switch Connections
1
1
1
1
2
1
terminate on other switches in the network and merely "pass through" the local switch.
BPX/SES
SES 3 SES 4
100 k 100 k
100 100
1000 1000
— 500
2
— 1
— 100
— 1 K
CWM Endpoints
0
0
1
2
Chapter 2 Interoperability and Performance Planning
Part Number OL-3847-01 Rev. D0, April, 2004