USE OF SUMMARAISATION  

Wednesday, October 8, 2008

A PRACTICAL USE OF SUMMARAISATION AND OUTPUT WITH ROUTER MEMORY SHOWS ...

A NEW COMMAND INTO MY DICT... sir is an alias for show ip route



r1#sir summary
IP routing table name is Default-IP-Routing-Table(0)
IP routing table maximum-paths is 16
Route Source Networks Subnets Overhead Memory (bytes)
connected 0 2 144 256
static 0 0 0 0
eigrp 100 8 9 1224 2176
internal 4 4592
Total 12 11 1368 7024
r1#


r2#sir summary
IP routing table name is Default-IP-Routing-Table(0)
IP routing table maximum-paths is 16
Route Source Networks Subnets Overhead Memory (bytes)
connected 0 9 648 1152
static 0 0 0 0
eigrp 100 8 2 720 1280
internal 4 4592
Total 12 11 1368 7024
r2#


r3#sir summar
IP routing table name is Default-IP-Routing-Table(0)
IP routing table maximum-paths is 16
Route Source Networks Subnets Overhead Memory (bytes)
connected 7 3 720 1280
static 0 0 0 0
eigrp 100 0 11 792 1408
internal 5 5740
Total 12 14 1512 8428
r3#


after summaraisation..

r1#sir summary
IP routing table name is Default-IP-Routing-Table(0)
IP routing table maximum-paths is 16
Route Source Networks Subnets Overhead Memory (bytes)
connected 0 2 144 256
static 0 0 0 0
eigrp 100 1 4 360 640
internal 5 5740
Total 6 6 504 6636
r1#


r2#sir summary
IP routing table name is Default-IP-Routing-Table(0)
IP routing table maximum-paths is 16
Route Source Networks Subnets Overhead Memory (bytes)
connected 0 9 648 1152
static 0 0 0 0
eigrp 100 1 4 360 640
internal 5 5740
Total 6 13 1008 7532
r2#


r3#sir summary
IP routing table name is Default-IP-Routing-Table(0)
IP routing table maximum-paths is 16
Route Source Networks Subnets Overhead Memory (bytes)
connected 7 3 720 1280
static 0 0 0 0
eigrp 100 1 3 288 512
internal 5 5740
Total 13 6 1008 7532
r3#




CAN YOU SEE THE MEMORY OCCUPIED BY EIGRP BEFORE AND AFTER THE SUMMARAISATION .... this is where summaraisation helps us ....

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