D-Link DGS-3630-52PC Quick installation Guide - Page 301

DGS-3630 Series Layer 3 Stackable Managed Switch Web UI Reference Guide Parameter Hello Interval Dead Interval Priority Transmit Delay Retransmit Interval Description Enter the Hello Interval value, between the hello packets that the router sends on an interface here. This value is advertised in the hello packets. The shorter the Hello Interval, the earlier topological changes will be detected, but more routing traffic will ensue. This value must be the same for all routers and access servers on a specific network. The range is from 1 to 65535 seconds. Select the Default option to use the default value, which is 10 seconds. Enter the Dead Interval value here, during which no packets are received and after which a neighbor is regarded as offline. The interval is advertised in router hello packets. This value must be the same for all routers and access servers on a specific network. The range is from 1 to 65535 seconds. Select the Default option to use the default value, which is 40 seconds. Enter the priority value of the router here. The range is from 0 to 255. Set the priority to help determine the OSPF Designated Router (DR) for a network. If two routers attempt to become the DR, the router with the higher router priority becomes the DR. If the router priority is the same for two routers, the router with the higher router ID takes precedence. Only routers with non-zero router priority values are eligible to become the designated or backup designated router. Configure router priority for multi-access networks (not point-to-point) only. Select the Default option to use the default value, which is 1. Enter the Transmit Delay value here. The range is from 1 to 65535 seconds. LinkState Updates (LSUs) must have their ages incremented by the amount specified in the seconds argument before transmission. The value assigned should take into account the transmission and propagation delays for the interface. If the delay is not added before transmission over a link, the time in which the LSA propagates over the link is not considered. This setting has more significance on very low speed links. Select the Default option to use the default value, which is 1 second. Enter the Retransmit Interval value here. The range is from 1 to 65535 seconds. After sending an LSA to a neighbor, the router keeps the LSA until it receives an acknowledgement. In case the router does not receive an acknowledgement during the set time (the Retransmit Interval value), it retransmits the LSA. Set the retransmission interval value conservatively to avoid unnecessary retransmission. The interval should be greater than the expected round-trip delay between two routers. Select the Default option to use the default value, which is 5 seconds. Click the Apply button to accept the changes made. OSPFv3 Redistribute Settings This window is used to display and configure the OSPFv3 redistribution settings. 289