the value of tags

From: Joe Dewberry (jdewberry@bellsouth.net)
Date: Wed Sep 19 2007 - 10:32:51 ART


Hi,

I have been tossing around quite a few redistribution schemes and found
the "tagging" method. See a quick snapshot below for RIP & OSPF

!
route-map OSPF-->RIP deny 10
 description --- route originated in RIP ---
 match tag 1
!
route-map OSPF-->RIP deny 20
 description --- route was in EIGRP & RIP ---
 match tag 11
!
route-map OSPF-->RIP deny 30
 description --- route was in OSPF & RIP ---
 match tag 101
!
route-map OSPF-->RIP permit 40
 description --- route originated in EIGRP, add OSPF ---
 match tag 10
 set tag 110
!
route-map OSPF-->RIP permit 50
 description --- route originated in OSPF ---
 set tag 100
!
route-map RIP-->OSPF deny 10
 description --- route originated in OSPF ---
 match tag 100
!
route-map RIP-->OSPF deny 20
 description --- route was in RIP & OSPF ---
 match tag 101
!
route-map RIP-->OSPF deny 30
 description --- route was in EIGRP & OSPF ---
 match tag 110
!
route-map RIP-->OSPF permit 40
 description --- route originated in EIGRP, add RIP ---
 match tag 10
 set tag 11
!
route-map RIP-->OSPF permit 50
 description --- route originated in RIP ---
 set tag 1

the values of the tags being

RIP == 1
EIGRP == 10
OSPF == 100

I see the value here as it can do a good job of eliminating unwanted
routes...has anyone come across a scenario (NetMasterClass) where this
would not work/scale?

--
Joe Dewberry


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