CVS Branch deletion

[CVS626]

All,

I'm trying to delete CVS branch which is no longer required using the below command (cvs rtag -d <tag name> <cvs module name> )

$ cvs login
Logging in to: pserver:XXXXXX@XXXXXX:XXXX/home/cvs/XXXXXXXX
CVS password: *******
$ cvs rtag -d tag_rel module_name

But when I run this command, I receive the following error message and the branch is not removed completely.

cvs rtag: Not removing branch tag `Tag_rel' from `/home/cvs/XXX,v'.
cvs rtag: Not removing branch tag `Tag_rel' from `/home/cvs/YYY,v'.
cvs rtag: Not removing branch tag `Tag_rel' from `/home/cvs/ZZZ,v'.

After the completion of 'cvs rtag -d' command, I'm still able to update the files from tag_rel branch using 'cvs update'.

There is a tag created for this branch.

I am using cvs-1.11.17

Any advice, what can be done to completely abandon the branch?

Is there any other command to remove the branch/tag completely from CVS?

Please provide some pointers to the above issue.

Thanks in advance.

--Prince