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Wonky tracking?

 
 
Tuc
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Posts: n/a
 
      08-02-2007
Hi,

3640 running c3640-jk9s-mz.124-13a.bin .

I have a set of ip sla/tracks, as such :
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


The problem I have is :

C3640-1# sho track
(100 taken out)
Track 200
Response Time Reporter 200 reachability
Reachability is Up
28 changes, last change 10:47:07
Delay up 20 secs, down 10 secs
Latest operation return code: OK
Latest RTT (millisecs) 691
Tracked by:
STATIC-IP-ROUTING 0
Track 201
Response Time Reporter 201 reachability
Reachability is Down
2 changes, last change 12:53:33
Delay up 20 secs, down 10 secs
Latest operation return code: Timeout

Which I don't get, since :

C3640-1#ping 64.200.58.69 source 192.168.0.3

Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 64.200.58.69, timeout is 2 seconds:
Packet sent with a source address of 192.168.0.3
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max =
768/806/856 ms

Any way to figure out whats happening (or not happening)?

The other issue I've had is that 100 has been down, 200 has
been up, and routing shows :

S* 0.0.0.0/0 [250/0] via 192.168.75.1

Shouldn't it be showing 11, since the track 200 up should be
used before the 250 fallback?

Thanks, Tuc

 
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Tuc
Guest
Posts: n/a
 
      08-03-2007
Hi,

I just caught this happening so I could document it :

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


So track 100/101 are down, 200 and 201 are 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


But wait, its using the "250" distanced route. My routing is :

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

So I would think "SEABREEZE" is out because its down, and "HUGHES"
would be in because its up. But its going to "SEABREEZE_FB" as if
HUGHES was down!

What/why?

Tuc
On Aug 2, 1:19 pm, Tuc <tuct...@gmail.com> wrote:
> Hi,
>
> 3640 running c3640-jk9s-mz.124-13a.bin .
>
> I have a set of ip sla/tracks, as such :
> 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
>
> The problem I have is :
>
> C3640-1# sho track
> (100 taken out)
> Track 200
> Response Time Reporter 200 reachability
> Reachability is Up
> 28 changes, last change 10:47:07
> Delay up 20 secs, down 10 secs
> Latest operation return code: OK
> Latest RTT (millisecs) 691
> Tracked by:
> STATIC-IP-ROUTING 0
> Track 201
> Response Time Reporter 201 reachability
> Reachability is Down
> 2 changes, last change 12:53:33
> Delay up 20 secs, down 10 secs
> Latest operation return code: Timeout
>
> Which I don't get, since :
>
> C3640-1#ping 64.200.58.69 source 192.168.0.3
>
> Type escape sequence to abort.
> Sending 5, 100-byte ICMP Echos to 64.200.58.69, timeout is 2 seconds:
> Packet sent with a source address of 192.168.0.3
> !!!!!
> Success rate is 100 percent (5/5), round-trip min/avg/max =
> 768/806/856 ms
>
> Any way to figure out whats happening (or not happening)?
>
> The other issue I've had is that 100 has been down, 200 has
> been up, and routing shows :
>
> S* 0.0.0.0/0 [250/0] via 192.168.75.1
>
> Shouldn't it be showing 11, since the track 200 up should be
> used before the 250 fallback?
>
> Thanks, Tuc



 
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Tuc
Guest
Posts: n/a
 
      08-08-2007
Hi,

ANYONE have any input on this? This issue is really getting
problematic. I've
tried on the cisco-nsp group, and they pointed me here. To the best of
my knowledge,
from what I see/read, I have everything set up properly. But it keeps
skipping my
11 weight/200 track and going to the 250 weight route which is
supposed to be a fallback.
But the problem is its falling there when it shouldn't be. 200 is up,
up fine, and available.

Thanks, Tuc

On Aug 2, 9:48 pm, Tuc <tuct...@gmail.com> wrote:
> Hi,
>
> I just caught this happening so I could document it :
>
> 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
>
> So track 100/101 are down, 200 and 201 are 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
>
> But wait, its using the "250" distanced route. My routing is :
>
> 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
>
> So I would think "SEABREEZE" is out because its down, and "HUGHES"
> would be in because its up. But its going to "SEABREEZE_FB" as if
> HUGHES was down!
>
> What/why?
>
> Tuc
> On Aug 2, 1:19 pm, Tuc <tuct...@gmail.com> wrote:
>
> > Hi,

>
> > 3640 running c3640-jk9s-mz.124-13a.bin .

>
> > I have a set of ip sla/tracks, as such :
> > 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

>
> > The problem I have is :

>
> > C3640-1# sho track
> > (100 taken out)
> > Track 200
> > Response Time Reporter 200 reachability
> > Reachability is Up
> > 28 changes, last change 10:47:07
> > Delay up 20 secs, down 10 secs
> > Latest operation return code: OK
> > Latest RTT (millisecs) 691
> > Tracked by:
> > STATIC-IP-ROUTING 0
> > Track 201
> > Response Time Reporter 201 reachability
> > Reachability is Down
> > 2 changes, last change 12:53:33
> > Delay up 20 secs, down 10 secs
> > Latest operation return code: Timeout

>
> > Which I don't get, since :

>
> > C3640-1#ping 64.200.58.69 source 192.168.0.3

>
> > Type escape sequence to abort.
> > Sending 5, 100-byte ICMP Echos to 64.200.58.69, timeout is 2 seconds:
> > Packet sent with a source address of 192.168.0.3
> > !!!!!
> > Success rate is 100 percent (5/5), round-trip min/avg/max =
> > 768/806/856 ms

>
> > Any way to figure out whats happening (or not happening)?

>
> > The other issue I've had is that 100 has been down, 200 has
> > been up, and routing shows :

>
> > S* 0.0.0.0/0 [250/0] via 192.168.75.1

>
> > Shouldn't it be showing 11, since the track 200 up should be
> > used before the 250 fallback?

>
> > Thanks, Tuc



 
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