Solved: show ip router summary this command explain !

systemant · ‎07-10-2012

Hello all ~

I am study the ccnp but I don't understand this command "show ip router summary"

who can explain ?

how can I compare this command and config ?

R2#sh ip route summary

IP routing table name is Default-IP-Routing-Table(0)

Route Source Networks Subnets Overhead Memory (bytes)

connected 0 4 256 608

static 0 0 0 0

internal 2 2344

Total 2 4 256 2952

R2#

interface Loopback1

ip address 192.168.200.1 255.255.255.252

!

interface Loopback5

ip address 192.168.200.5 255.255.255.252

!

interface Loopback9

ip address 192.168.200.9 255.255.255.252

!

interface FastEthernet0/0

no ip address

shutdown

duplex auto

speed auto

!

interface Serial0/0

ip address 172.16.1.1 255.255.255.0

Sandeep Choudhary · ‎07-10-2012

Hi Cash,

show ip route summary

R2#sh ip route summary

IP routing table name is Default-IP-Routing-Table(0)

Route Source    Networks    Subnets     Overhead    Memory (bytes)

connected                0                     4                256               608

static                         0                      0                  0                  0

internal                     2                                                            2344

Total                          2                      4               256              2952

Table 60 show ip route summary Field Descriptions
Field	Description
Route Source	Routing protocol name, or the connected, static, or internal keyword. "Internal" indicates those routes that are in the routing table that are not owned by any routing protocol.
Networks	Number of prefixes that are present in the routing table for each route source.
Subnets	Number of subnets that are present in the routing table for each route source, including host routes.
Overhead	Any additional memory involved in allocating the routes for the particular route source other than the memory specified in the Memory field.
Memory	Number of bytes allocated to maintain all the routes for the particular route source.

Regards

Please rate if it helps.

View solution in original post

Sandeep Choudhary · ‎07-10-2012

Hi Cash,

show ip route summary

R2#sh ip route summary

IP routing table name is Default-IP-Routing-Table(0)

Route Source    Networks    Subnets     Overhead    Memory (bytes)

connected                0                     4                256               608

static                         0                      0                  0                  0

internal                     2                                                            2344

Total                          2                      4               256              2952

Table 60 show ip route summary Field Descriptions
Field	Description
Route Source	Routing protocol name, or the connected, static, or internal keyword. "Internal" indicates those routes that are in the routing table that are not owned by any routing protocol.
Networks	Number of prefixes that are present in the routing table for each route source.
Subnets	Number of subnets that are present in the routing table for each route source, including host routes.
Overhead	Any additional memory involved in allocating the routes for the particular route source other than the memory specified in the Memory field.
Memory	Number of bytes allocated to maintain all the routes for the particular route source.

Regards

Please rate if it helps.

Ganesh Hariharan · ‎07-11-2012

Hello ,

As stated by the above post ip route summary gives you the current state of the routing table, like where excatly the routes originated and how many prefix are been used by routig protocol with number of bytes used by routes.

This command is mainly used to check the state of the routing table.

Hope to help !!

Ganesh