Avaya Configuring IP, ARP, RIP, and OSPF Services Bedienungsanleitung PDF herunterladen (Seite 306)

Configuring IP, ARP, RIP, and OSPF Services

A-66

117356-E Rev 00

Parameter: Holddown Timer

Path: Configuration Manager > Protocols > IP > RIP Interfaces

Default: 90 seconds; 3 hours for dial-optimized routing

Options: 15 seconds to 259,200 seconds (72 hours); 3 hours to 3,628,800 seconds

(6 weeks) for dial-optimized routing

Function: Specifies the time period that unusable routes will be advertised through this

interface after the route has become invalid. This parameter affects how long

a route remains in the routing table after the route has become unusable. Note

that if a route to a destination becomes unusable, the holddown value does not

affect the router’s ability to learn new routes to the same destination.

Instructions: Bay Networks recommends a timeout value of the broadcast time multiplied

by 3. Enter a time in 5-second increments.

MIB Object ID: 1.3.6.1.4.1.18.3.5.3.2.2.2.1.14

Parameter: RIP Mode

Path: Configuration Manager > Protocols > IP > RIP Interfaces

Default: RIP I

Options: RIP I

RIP II

RIPII with aggregation

Function: Specifies which mode of RIP to run.

Instructions: If you specify RIP I, RIP generates RIP Version 1 packets only. The

destination IP address is the directed broadcast address, and the destination

MAC address is the broadcast address. Select RIP I if any of the listening

devices are RIP Version 1-only devices. If you select RIP II, RIP generates

RIP Version 2 updates with the destination MAC address set to the multicast

address of 224.0.0.9 specified in the RIP Version 2 RFC. The destination

MAC address on Ethernet and FDDI networks will be the corresponding

multicast address. On all other media, the destination MAC address will be

the broadcast address. RIP does not aggregate subnet information in the

updates. If you select RIPII with aggregation, RIP generates Version 2

updates but aggregates subnet information in the manner of RIP Version 1.

Bay Networks recommends using RIP II mode, with or without aggregation,

rather than RIP I mode, especially if unnumbered point-to-point links or

variable-length subnets are used.

MIB Object ID: 1.3.6.1.4.1.18.3.5.3.2.2.2.1.15

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Avaya Configuring IP, ARP, RIP, and OSPF Services Bedienungsanleitung Seite 306