Cisco Support Community
cancel
Showing results for 
Search instead for 
Did you mean: 
Announcements

Welcome to Cisco Support Community. We would love to have your feedback.

For an introduction to the new site, click here. And see here for current known issues.

New Member

OSPF TOS0 meanings

Dears

I got a information from show ip ospf:

TOS(TOS0) routes, what is the TOS(TOS0) meaning?

1 REPLY
Purple

Re: OSPF TOS0 meanings

Hi,

TOS refers to Type of Service, which used to be a field in the IP header. That field has now been superceded by the DSCP field.

Older versions of OSPF used to support routing based on different values of the TOS bits. The current version of OSPF does not support that and uses zero in the fields which required a TOS value. That is why you see the TOS0 in the output of sh ip ospf.

Pls do remember to rate posts.

Paresh

308
Views
8
Helpful
1
Replies
CreatePlease to create content