[c-nsp] track just not working right at all

Fri Aug 3 09:26:16 EDT 2007

Hi,

	I'm trying to use tracking to decide which connection to
use. From what I can tell, I have it set up perfectly. However,
its not working perfectly. I have 4 items "ip sla monitor"d, but
only 2 currently for tracking (100 and 200). I'm having the issue
that when 100 is down, 200 isn't taking over, its going to the next
highest weighted connection!

C3640-1#   sho track br
Track   Object                         Parameter        Value
100     rtr       100                  reachability     Down, delayed
Up (119 secs remaining)
101     rtr       101                  reachability     Down, delayed
Up (29 secs remaining)
200     rtr       200                  reachability     Up
201     rtr       201                  reachability     Up 

C3640-1#sho ip route track
 ip route 0.0.0.0 0.0.0.0 192.168.75.1 10 name SEABREEZE track 100 state is [dow
n]
 ip route 0.0.0.0 0.0.0.0 192.168.0.1 11 name HUGHES track 200 state is [up]

C3640-1# sho track
Track 100
  Response Time Reporter 100 reachability
  Reachability is Down, delayed Up (90 secs remaining)
    613 changes, last change 00:27:45
  Delay up 180 secs, down 30 secs
  Latest operation return code: Timeout
  Tracked by:
    STATIC-IP-ROUTING 0
Track 101
  Response Time Reporter 101 reachability
  Reachability is Down, delayed Up (1 sec remaining)
    52 changes, last change 00:27:44
  Delay up 180 secs, down 30 secs
  Latest operation return code: Timeout
Track 200
  Response Time Reporter 200 reachability
  Reachability is Up
    54 changes, last change 06:26:40
  Delay up 20 secs, down 10 secs
  Latest operation return code: OK
  Latest RTT (millisecs) 707
  Tracked by:
    STATIC-IP-ROUTING 0
Track 201
  Response Time Reporter 201 reachability
  Reachability is Up
    29 changes, last change 04:39:40
  Delay up 20 secs, down 10 secs
  Latest operation return code: OK
  Latest RTT (millisecs) 700

     This confirms it....

C3640-1#sho ip route
Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP
       D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
       N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
       E1 - OSPF external type 1, E2 - OSPF external type 2
       i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS
level-2
       ia - IS-IS inter area, * - candidate default, U - per-user
static route
       o - ODR, P - periodic downloaded static route

Gateway of last resort is 192.168.75.1 to network 0.0.0.0

C    192.168.75.0/24 is directly connected, Ethernet0/0
C    192.168.0.0/24 is directly connected, Ethernet1/0
C    192.168.3.0/24 is directly connected, BVI1
S*   0.0.0.0/0 [250/0] via 192.168.75.1 

	My config is a 3640 running c3640-jk9s-mz.124-13a.bin .

ip sla monitor 100
 type echo protocol ipIcmpEcho 204.107.90.128 source-ipaddr
192.168.75.49
 timeout 4000
 frequency 10
ip sla monitor schedule 100 life forever start-time now
ip sla monitor 101
 type echo protocol ipIcmpEcho 64.200.58.69 source-ipaddr
192.168.75.49
 timeout 4000
 frequency 10
ip sla monitor schedule 101 life forever start-time now
ip sla monitor 200
 type echo protocol ipIcmpEcho 204.107.90.128 source-ipaddr
192.168.0.3
 timeout 4000
 frequency 10
ip sla monitor schedule 200 life forever start-time now
ip sla monitor 201
 type echo protocol ipIcmpEcho 64.200.58.69 source-ipaddr 192.168.0.3
 timeout 4000
 frequency 10
ip sla monitor schedule 201 life forever start-time now

track 100 rtr 100 reachability
 delay down 30 up 180
!
track 101 rtr 101 reachability
 delay down 30 up 180
!
track 200 rtr 200 reachability
 delay down 10 up 20
!
track 201 rtr 201 reachability
 delay down 10 up 20

ip route 0.0.0.0 0.0.0.0 192.168.75.1 10 name SEABREEZE track 100
ip route 0.0.0.0 0.0.0.0 192.168.0.1 11 name HUGHES track 200
ip route 0.0.0.0 0.0.0.0 192.168.75.1 250 name SEABREEZE_FB
ip route 0.0.0.0 0.0.0.0 192.168.0.1 251 name HUGHES_FB

ip local policy route-map LocalPolicy

ip access-list extended Ping-HUGHES-VJOFN
 permit icmp host 192.168.0.3 host 204.107.90.128
ip access-list extended Ping-HUGHES-WCGRTR
 permit icmp host 192.168.0.3 host 64.200.58.69
ip access-list extended Ping-SEABREEZE-VJOFN
 permit icmp host 192.168.75.49 host 204.107.90.128
ip access-list extended Ping-SEABREEZE-WCGRTR
 permit icmp host 192.168.75.49 host 64.200.58.69

route-map LocalPolicy permit 10
 match ip address Ping-SEABREEZE-VJOFN
 set ip next-hop 192.168.75.1
!
route-map LocalPolicy permit 11
 match ip address Ping-SEABREEZE-WCGRTR
 set ip next-hop 192.168.75.1
!
route-map LocalPolicy permit 20
 match ip address Ping-HUGHES-VJOFN
 set ip next-hop 192.168.0.1
!
route-map LocalPolicy permit 21
 match ip address Ping-HUGHES-WCGRTR
 set ip next-hop 192.168.0.1

                        Thanks, Tuc