Sessions And Tunnels Supported - Juniper JUNOSE SOFTWARE FOR E SERIES 11.3.X - BROADBAND ACCESS CONFIGURATION GUIDE 2010-10-12 Configuration Manual

Sessions and Tunnels Supported

Copyright © 2010, Juniper Networks, Inc.
You can also create tunnels on IOAs that support shared tunnel-server ports. You can
configure (provision) a shared tunnel-server port to use a portion of the bandwidth of
the IOA to provide tunnel services. For a list of the IOAs that support shared tunnel-server
ports, see the E120 and E320 Module Guide.
For information about IOAs that are supported by the LAC and LNS and the type of
support each module type receives, see E120 and E320 Module Guide, Appendix A, IOA
Protocol Support.
The E120 and E320 routers support 60,000 L2TP sessions, the ERX1440 router supports
32,000 L2TP sessions, and all other E Series routers support a maximum of 16,000 L2TP
sessions. The following guidelines apply:
On all E Series routers
The SM and the ES2-S1 Service IOA both support the termination of 16,000 LNS
sessions per module. Therefore, if you want to apply input or output policies to all of
the available LNS sessions, you can only terminate a maximum of 8000 sessions per
module.
On the E120 router, E320 router, and the ERX1440 router
You can create a systemwide maximum of 60,000 sessions per E120 or E320 router
or 32,000 sessions per ERX1440 router. The maximum session limit is spread in any
combination across a maximum of 8000 tunnels. For a router that is operating as an
LAC for some tunnels and as an LNS for others, the 8000 tunnels and the router's
applicable maximum sessions limits apply to the combined total of LAC and LNS
tunnels and sessions.
On all E Series routers except the ERX1440 router, E120 router, and the E320 router
You can create a systemwide maximum of 16,000 sessions spread in any combination
across a maximum of 8000 tunnels shared between an LAC and an LNS. For a router
that is operating as an LAC for some tunnels and as an LNS for others, the 8000 tunnels
and 16,000 sessions limits apply to the combined total of LAC and LNS tunnels and
sessions.
NOTE: In previous releases, the JunosE Software required that you use the
license l2tp-session command to configure a license to enable support
for the maximum allowable L2TP sessions on ERX1440 routers, E120
routers, and E320 routers. The license l2tp-session command still appears
in the CLI, but it has no effect on the actual enforced limit. The reported
license limit is 60,000. The show license l2tp-session command also still
appears in the CLI.
To obtain the maximum number of ingress and egress policy attachments supported
for L2TP sessions, see JunosE Release Notes, Appendix A, System Maximums.
Chapter 11: L2TP Overview
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