×

Warning message

  • Cisco Support Forums is in Read Only mode while the site is being migrated.
  • Cisco Support Forums is in Read Only mode while the site is being migrated.

Route tag size

Answered Question
May 7th, 2012
User Badges:

Hi All,


I have a doubt regarding the route tag size used by different routing protocols. As per I know EIGRP, OSPF & BGP use 32 bit tags but the below document by cisco says RIP V2 uses a 16-bit tag:


http://docwiki.cisco.com/wiki/Routing_Information_Protocol


Can somebody please clarify if the route tag size is same for all routing protocols or is it different?


Thanks a lot in advance

Correct Answer by Giuseppe Larosa about 5 years 3 months ago

Hello Pradeep,

route tag size is not the same for all protocols as you noted.


RIPV2 and may be ISIS should have a 16 bit route tag field, other protocols have a 32 bit route tag field as you have noted


This has to be taken in account in multi protocols scenarios.


Hope to help

Giuseppe

  • 1
  • 2
  • 3
  • 4
  • 5
Overall Rating: 5 (1 ratings)
Loading.
Correct Answer
Giuseppe Larosa Mon, 05/07/2012 - 05:22
User Badges:
  • Super Silver, 17500 points or more
  • Hall of Fame,

    Founding Member

Hello Pradeep,

route tag size is not the same for all protocols as you noted.


RIPV2 and may be ISIS should have a 16 bit route tag field, other protocols have a 32 bit route tag field as you have noted


This has to be taken in account in multi protocols scenarios.


Hope to help

Giuseppe

Actions

This Discussion

Related Content