Dell C9010 Modular Chassis Switch EMC Networking Command-Line Reference Guide - Page 822

Command Modes • EXEC • EXEC Privilege Command History This guide is platform-specific. For command information about other platforms, refer to the relevant Dell Networking OS Command Line Reference Guide. The following is a list of the Dell Networking OS version history for this command. Version Description 9.9(0.0) 9.8(0.0) 9.7(0.0) 9.5(0.1) 9.2(0.2) 9.0.2.0 8.3.19.0 8.3.7.1 Introduced on the C9010. Introduced on the S3048-ON and S4048-ON. Added supported for VRF. Introduced on the S6000-ON. Inroduced on the Z9500. Introduced on the Z9000. Introduced on the S6000. Introduced on the S4820T. Introduced on the S4810. Usage Information The following describes the show isis database command shown in the following example. Field Description IS-IS Level-1/ Displays the IS-IS link state database for Level 1 or Level 2. Level-2 Link State Database LSPID Displays the LSP identifier. The first six octets are the System ID of the originating router. The first six octets are the System ID of the originating router. The next octet is the pseudonode ID. If this byte is not zero, the LSP describes system links. If this byte is zero (0), the LSP describes the state of the originating router. The designated router for a LAN creates and floods a pseudonode LSP and describes the attached systems. The last octet is the LSP number. An LSP is divided into multiple LSP fragments if there is more data than cannot fit in a single LSP. Each fragment has a unique LSP number. An * after the LSPID indicates that the system originates an LSP where this command was issued. LSP Seq Num LSP Checksum LSP Holdtime ATT P OL This value is the sequence number for the LSP that allows other systems to determine if they have received the latest information from the source. This is the checksum of the entire LSP packet. This value is the amount of time, in seconds, that the LSP remains valid. A zero holdtime indicates that this is a purged LSP and is being removed from the link state database. A value between brackets indicates the duration that the purged LSP stays in the database before being removed. This value represents the Attach bit. This value indicates that the router is a Level 1-2 router and can reach other areas. Level 1-only routers and Level 1-2 routers that have lost connection to other Level 1-2 routers use the Attach bit to find the closest Level 1-2 router. They install a default route to the closest Level 1-2 router. This value represents the P bit. This bit is always set to zero as Dell Networking does not support area partition repair. This value represents the overload bit, determining congestion. If the overload bit is set, other routers do not use this system as a transit router when calculating routes. 822 Intermediate System to Intermediate System (IS-IS)