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RadixIPLookup
RadixIPLookup — Click element; IP lookup using a radix trie
RadixIPLookup(ADDR1/MASK1 [GW1] OUT1, ADDR2/MASK2 [GW2] OUT2, ...)
Ports: 1 input, any number of outputs
Processing: push
Performs IP lookup using a radix trie. The first level of the trie has 256 buckets; each succeeding level has 16. The maximum number of levels that will be traversed is thus 7.
Expects a destination IP address annotation with each packet. Looks up that address in its routing table, using longest-prefix-match, sets the destination annotation to the corresponding GW (if specified), and emits the packet on the indicated OUTput port.
Each argument is a route, specifying a destination and mask, an optional gateway IP address, and an output port.
Uses the IPRouteTable interface; see IPRouteTable for description.
- table (read-only) — Outputs a human-readable version of the current routing table.
- lookup (read-only) — Reports the OUTput port and GW corresponding to an address.
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add (write-only) —
Adds a route to the table. Format should be `
ADDR/MASK [GW] OUT'. Should fail if a route forADDR/MASKalready exists, but currently does not. - set (write-only) — Sets a route, whether or not a route for the same prefix already exists.
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remove (write-only) —
Removes a route from the table. Format should be `
ADDR/MASK'. -
ctrl (write-only) —
Adds or removes a group of routes. Write `
add/set ADDR/MASK [GW] OUT' to add a route, and `remove ADDR/MASK' to remove a route. You can supply multiple commands, one per line; all commands are executed as one atomic operation.
See IPRouteTable for a performance comparison of the various IP routing elements.
IPRouteTable, DirectIPLookup, RangeIPLookup, StaticIPLookup, LinearIPLookup, SortedIPLookup, LinuxIPLookup
Generated by click-elem2man from ../elements/ip/radixiplookup.hh:9 on 2018/08/06.