Cisco Cisco IOS Software Release 12.2(4)B
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Cisco IOS Release 12.2(4)B
PPPoE Session Limit
Feature History
This document describes the PPPoE Session Limit feature in Cisco IOS Release 12.2(4)B. It includes
the following sections:
the following sections:
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Feature Overview
The PPP over Ethernet (PPPoE) Session Limit feature enables you to limit the number of PPPoE sessions
that can be created on a router or on an ATM permanent virtual connection (PVC), PVC range, virtual
circuit (VC) class, or Ethernet subinterface.
that can be created on a router or on an ATM permanent virtual connection (PVC), PVC range, virtual
circuit (VC) class, or Ethernet subinterface.
Before the introduction of this feature, there was no way to limit the number of PPPoE sessions that
could be created on a router. Not having a limit was potentially a problem because it was possible that
the router could create so many PPPoE sessions that it would run out of memory.
could be created on a router. Not having a limit was potentially a problem because it was possible that
the router could create so many PPPoE sessions that it would run out of memory.
To prevent the router from using too much memory for virtual access, the PPPoE Session Limit feature
introduces a new command and a modification to an existing command that enable you to specify the
maximum number of PPPoE sessions that can be created. The new pppoe limit max-sessions command
limits the number of PPPoE sessions that can be created on the router. The modified pppoe max-sessions
command limits the number of PPPoE sessions that can be created on an ATM PVC, PVC range, VC
class, or Ethernet subinterface.
introduces a new command and a modification to an existing command that enable you to specify the
maximum number of PPPoE sessions that can be created. The new pppoe limit max-sessions command
limits the number of PPPoE sessions that can be created on the router. The modified pppoe max-sessions
command limits the number of PPPoE sessions that can be created on an ATM PVC, PVC range, VC
class, or Ethernet subinterface.
Release
Modification
12.2(1)DX
This feature was introduced.
12.2(2)DD
This feature was integrated into Cisco IOS Release 12.2(2)DD.
12.2(4)B
This feature was integrated into Cisco IOS Release 12.2(4)B.