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Customizing Demand Circuits
308621-14.00 Rev 00
12-47
Protocol Configuration for Demand Circuit Groups
You must configure a demand circuit group using one of the following
unnumbered protocols:
IP with either RIP, RIP2, or OSPF as the routing protocol
IPX with RIP, SAP, and/or NLSP as the routing protocol
•Bridging
A single protocol configuration applies to all circuits in the group and can be used
by many remote nodes calling the recovery router.
Without the use of specific network addresses, the recovery router must use
routing updates to determine the data path to the remote nodes. Unlike individual
demand circuits, you can enable routing protocols for a demand circuit group
without establishing a dial-up connection. The demand circuit group and its
protocol interface are active only when the physical connection is active. Without
a physical line available, no circuit or protocol information (for example, RIP
update packets) can pass from one router to the next.
If you enable compression across PPP demand circuits and you configure the
router to negotiate compression below the multilink bundle, do not configure
protocol prioritization for demand circuits running PPP multilink. Protocol
prioritization modifies the order in which packets are sent over the line, which
could change the multilink-assigned order of packets and cause problems with the
data. For more information about compression, see Configuring Data
Compression Services.
Caller Resolution Information for Demand Circuit Groups
After you specify the demand pool ID and the number of circuits for a demand
circuit group, Site Manager displays the Caller Resolution Info window. You use
this window to enter the CHAP name or PAP ID of the remote routers associated
with this demand circuit group. When a remote call comes in, the router activates
a circuit from the specified circuit group.
Note:
When you configure a protocol for a demand circuit group, Site
Manager requires that you also configure a routing protocol.
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