7705 SAR Interfaces
258
Interface Configuration Guide
3HE 11011 AAAC TQZZA Edition: 01
The following must have all member links of an MLPPP bundle configured on
the same card or module, and on the same port:
− 2-port OC3/STM1 Channelized Adapter card
− 4-port OC3/STM1 / 1-port OC12/STM4 Adapter card
Multilink bundling is based on a link control protocol (LCP) option negotiation that
permits a system to indicate to its peer that it is capable of combining multiple
physical links into a bundle. Each bundle represents a single connection between
two routers. The bundles aggregate channelized ports to define the bandwidth
between the routers over the DS1 links.
Multilink bundling operations are modeled after a virtual PPP link-layer entity where
packets received over different physical link-layer entities are identified as belonging
to a separate PPP network protocol (the Multilink Protocol, or MP) and recombined
and sequenced according to information present in a multilink fragmentation header.
All packets received over links identified as belonging to the multilink arrangement
are presented to the same network-layer protocol processing machine, whether they
have multilink headers or not.
When you configure multilink bundles, consider the following guidelines.
• A multilink bundle configuration should include at least 2 ports.
• Multilink bundles can only be aggregated on a single adapter card.
• All member links of an MLPPP group must be of the same type (either E1 or
Ds1).
• When you configure a channel group on the network side with ppp-auto
encapsulation, the system automatically allocates all timeslots to the channel
group.
• When you configure a channel group on the access side with IPCP
encapsulation, the system does not automatically allocate all timeslots to the
channel group. In order to use the port or channel group as a member in an
MLPPP or MC-MLPPP, you must manually allocate all the timeslots to the
channel group before adding it to the bundle.
To Next Page
Loading...
