Cisco 10000 - Manual (Page 422)

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Cisco 10000 Series Router Software Configuration Guide
OL-2226-23
Chapter 19 Configuring Multilink Point-to-Point Protocol Connections
MLP Bundles
MLP Bundles and PPP Links
MLP works with fully functional Point-to-Point Protocol (PPP) interfaces. An MLP bundle can consist
of a PPP over serial link and a PPP over ATM link. As long as each link behaves like a standard serial
interface, the mixed links work properly in a bundle.
Adding the ppp multilink group command to a link’s configuration does not make that link part of the
specified bundle. This command only places a restriction on the link. If the link negotiates to use
multilink, then it must provide the proper identification to join the bundle on the multilink interface or
to activate a bundle on that interface. If the link provides identification that coincides with another active
bundle in the system, or the link fails to match the identity of a bundle that is already active on the
multilink group interface, the connection terminates.
A link joins an MLP bundle only if it negotiates to use multilink when the connection is established and
the identification information exchanged matches that of an existing bundle. If a link supplies
identification information that does not match any known bundle, MLP creates a new bundle for the user.
System Limits for MLP Bundles
Table 19-1 lists the system limits for MLP bundles.
Note The multilink interface ranges described in Table 19-1 require Cisco IOS Release 12.2(28)SB or
later releases. For releases earlier than Cisco IOS Release 12.2(28)SB, the valid multilink
interface range is 1 to 2,147,483,647.
Table 19-1 System Limits for MLP Bundles
Feature
Maximum No.
of Members
Per Bundle Maximum No.
of Bundles
Per System
Maximum No. of
Member Links
Per System
Multilink Interface
Range LFI
Supported
MLP over Serial 10 1250 2500 1 to 9999
(Release 12.2(28)SB
and later) and from 1
to 9999 and 65,536 to
2,147,483,647
(Release 12.2(31)SB2
and later) Yes
Interleaving on all
member links
Single-VC MLP over
ATM 1 8192 8192 10,000 and higher Yes
Interleaving on 1
member link
Multi-VC MLP over
ATM 10 1250 2500 1 to 9999
(Release 12.2(28)SB
and later) or from 1 to
9999 and 65,536 to
2,147,483,647
(Release 12.2(31)SB2
and later) Yes
Interleaving on 1
member link
MLP LAC switched
MLPPPoE 1 10240 10240 — Yes
Interleaving on 1
member link