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Introduction
20
Multipoint
A simple Multipoint configuration would consist of a head office and two remote offices. Cost comparisons might
reveal that it is less expensive to use a dial-up line during business hours only instead of a permanent leased line.
One P2600 router will be installed at each office (for a total of three units). Each P2600 router at the remote office
locations will connect to a separate link on the P2600 router at the head office. The link from each bridge/router will
be connected to a dial modem. Set the link operation of both links on the bridge/router at the head office to
Conditional, and then enter a time schedule for each link by using the Time Schedule option of the Link Activation
Conditions Menu. The modems connected to the head-office bridge/router will each have an autodial number of
one of the modems at the remote offices. With the time schedule set to have the link active from 8 am to 6 pm each
day of the week, the P2600 router will establish the link and keep it active during those hours only.
Disaster Recovery Backup Link
Each Single Active Link P2600 router has the ability to activate a secondary link when the main link fails. This secondary link
may be connected to a dial-up modem or ISDN service, so it can be used if something should happen to the main link. The
secondary link is available only for a disaster-recovery situation.
ISDN Single Active Link & Dual Active Link
On Single Active Link ISDN P2600 routers, when the WAN Environment option is set to Multipoint, only ISDN call 1 is
available; ISDN call 2 is disabled. A Single Active Link ISDN router will be able to use both ISDN calls to connect in a
Point-to-Point topology to another ISDN router.
On Dual Active Link ISDN P2600 routers, the WAN Environment option may be set to either Point-to-Point or Multipoint.
Both ISDN calls may be used to connect to the same ISDN router or to two other ISDN routers.
Operating Software Upgrades
The P2600 router includes flash memory, that allows new system code to be downloaded using the Trivial File Transfer
Protocol (TFTP). This allows software updates to be performed quickly and painlessly from a host server (with TFTP
capabilities) on the network.
The P2600 router also allows the downloading of software updates by using a direct management port connection and the
ZMODEM transfer protocol.