CISCO Express Forwarding LM Prefix Entry

1.3.6.1.4.1.9.9.492.1.1.4.1

If CEF is enabled on the managed device, then each entry represents a longest Match Prefix request. A management station wishing to get the longest Match prefix for a given destination address should create the associate instance of the row status. The row status should be set to active(1) to initiate the request. Note that this entire procedure may be initiated via a single set request which specifies a row status of createAndGo(4). Once the request completes, the management station should retrieve the values of the objects of interest, and should then delete the entry. In order to prevent old entries from clogging the table, entries will be aged out, but an entry will never be deleted within 5 minutes of completion. Entries are lost after an agent restart. I.e. to find out the longest prefix match for destination address of A.B.C.D on entity whose entityPhysicalIndex is 1, the Management station will create an entry in cefLMPrefixTable with cefLMPrefixRowStatus.1(entPhysicalIndex).1(ipv4).A.B.C.D set to createAndGo(4). Management Station may query the value of objects cefLMPrefix and cefLMPrefixLen to find out the corresponding prefix entry from the cefPrefixTable once the value of cefLMPrefixState is set to matchFound(2). entPhysicalIndex is also an index for this table which represents entities of 'module' entPhysicalClass which are capable of running CEF. INDEX { entPhysicalIndex, cefLMPrefixDestAddrType, cefLMPrefixDestAddr } ::= { cefLMPrefixTable 1} CefLMPrefixEntry ::= SEQUENCE { cefLMPrefixDestAddrType InetAddressType, cefLMPrefixDestAddr InetAddress, cefLMPrefixState CefPrefixSearchState, cefLMPrefixAddr InetAddress, cefLMPrefixLen InetAddressPrefixLength, cefLMPrefixRowStatus RowStatus } SYNTAX InetAddressType MAX-ACCESS not-accessible STATUS current DESCRIPTION The Destination Address Type. This object specifies the address type used for cefLMPrefixDestAddr. Longest Match Prefix entries are only valid for the address type of ipv4(1) and ipv6(2).