topic Re: ICX Static route not added to table in ICX Switches

ICX Static route not added to table

simon_hamilton_ — Tue, 21 Apr 2020 23:46:54 GMT

ICX7450 running 10.1.16T215, when I configure additional static routes they aren't getting added to the routing table - so the destination is still just hitting the default route.
Tried different AD / cost and prefix length from /20 all the way to /32 without a difference.
Any ideas?

Re: ICX Static route not added to table

jijo_panangat — Wed, 22 Apr 2020 07:31:56 GMT

Hello Simon,

Could you confirm if you are running a routing or switching code ?
'show version' o/p can help

Secondly, Is the next-hop reachable from switch ?

Re: ICX Static route not added to table

netwizz — Fri, 24 Apr 2020 18:47:17 GMT

10.1.16T215 is the bootrom not the actual flash code. Per Jijo Panagat, you need to run flash code with an R in it like SPR08090f.bin because that is your Layer-3 firmware (R = Router).

SPS08090f.bin for example is Layer-2 firmware (S = Switch)... Does NOT do

Also, you need to have at least one (1) operational up/up interface in the VLAN that has the VE attached to it.

For example

vlan 123 name test by port
untagged ethe 1/2/1
router-interface ve 123
!

interface ve 123
ip address 10.1.2.1 255.255.224.0
!

^^^ Above is a /20 example

It will add 10.1.0.0/20 to your routing table as DIRECT (directly-conneccted) via ve 123

However, it will ONLY add that to the routing table if untagged e 1/2/1 is up in this example. Do a "show interfaces brief"

I hope that helps.

Re: ICX Static route not added to table

simon_hamilton_ — Mon, 27 Apr 2020 18:41:27 GMT

The code is SPR08091.bin so a routing image - a bunch of other static and OSPF routes are working fine. Including to the gateway I'm adding routes to...which is what I don't understand.

Re: ICX Static route not added to table

jijo_panangat — Tue, 28 Apr 2020 06:39:02 GMT

Can you share a snippet of your routing table and static route you are trying to add ?

Re: ICX Static route not added to table

netwizz — Tue, 28 Apr 2020 07:24:00 GMT

Is the network you are attempting to route to reachable via a directly-connected subnet or a up interface?

Is the network you are trying to get to reachable via another layer-3 device connected to this one via a directly-connected network? You pr static route should be in the format: network/mask (where I need to get to) via next-hop or interface.

The next-hop should be an IP via a directly-connected network. To create a directly-connected network, you assign an IP with Mask to a Layer-3 interface (generally a ve interface) known as a virtual router interface (VRI).. if you come from the Cisco world these are referred to as SVIs (Software Virtual Interfaces), and they are your interface vlan 123 interfaces...

******

The below are generally for special use cases only, but they are worth understanding the behavior of the ICX...

Use a static route or even a routing protocol to resolve a static route (yikes):

device(config)# ip route next-hop-recursion 4

Resolve a static route with a default route:

Router(config)# ip route next-hop-enable-default

Re: ICX Static route not added to table

simon_hamilton_ — Tue, 28 Apr 2020 14:26:27 GMT

Yes the next hop is directly connected (10.1.2.1) and the gateway has OSPF routes pointing at it which are working fine.
Type Codes - B:BGP D:Connected O:OSPF R:RIP S:Static; Cost - Dist/Metric
BGP  Codes - i:iBGP e:eBGP
OSPF Codes - i:Inter Area 1:External Type 1 2:External Type 2
        Destination        Gateway         Port          Cost          Type Uptime
1       0.0.0.0/0          10.1.1.1        ve 3          1/1           S    45d17h
2       10.0.0.0/8         10.1.1.1        ve 3          1/1           S    20d3h
3       10.0.0.0/24        10.1.1.1        ve 3          110/10        O2   4d19h
4       10.0.5.1/32        10.1.1.1        ve 3          110/61        O    4d19h
5       10.0.6.0/24        10.1.2.1        ve 2          110/60        O    10d12h
...
14      10.1.1.0/29        DIRECT          ve 3          0/0           D    45d17h
15      10.1.2.0/29        DIRECT          ve 2          0/0           D    33d4h
16      169.254.253.0/30   10.1.2.1        ve 2          110/1050      O    10d12h
17      169.254.253.4/30   10.1.2.1        ve 2          110/1050      O    10d12h

In the configuration I have:
ip route 172.31.0.0/20 10.1.2.1
ip route 172.31.4.0/24 10.1.2.1 name AWS
ip route 172.31.4.13/32 10.1.2.1
None of which make it to the table.

Thanks for any ideas. I'm thinking I may need to try a reboot/code upgrade at this point.

Re: ICX Static route not added to table

jijo_panangat — Thu, 30 Apr 2020 03:42:33 GMT

Thanks, Could you pls open a tac case for remote debugging ? Also o/p of 'show ip route 10.1.2.1'

Re: ICX Static route not added to table

simon_hamilton_ — Thu, 30 Apr 2020 03:52:48 GMT

I have a TAC case already, 01051607, I'll try and get it escalated to a remote session tomorrow.

SSH@COLO-ICX01#sh ip route 10.1.2.1
Type Codes - B:BGP D:Connected O:OSPF R:RIP S:Static; Cost - Dist/Metric
BGP Codes - i:iBGP e:eBGP
OSPF Codes - i:Inter Area 1:External Type 1 2:External Type 2
Destination Gateway Port Cost Type Uptime
1 10.1.2.0/29 DIRECT ve 2 0/0 D 35d13h

Re: ICX Static route not added to table

jijo_panangat — Thu, 30 Apr 2020 05:35:22 GMT

Thanks Simon, I'll notify the team as well.

Re: ICX Static route not added to table

simon_hamilton_ — Thu, 30 Apr 2020 19:07:59 GMT

It was suggested by support I 'clear IP route'
Sure enough this fixed it and the routes went into the table and now work. Still plan to upgrade to probably 8.0.92b at some point as the .91 release doesn't seem to be actively maintained.

Re: ICX Static route not added to table

jijo_panangat — Sun, 03 May 2020 02:32:19 GMT

Got you, Do you remember how you landed into the problem state - May be a route flap, power outage,switch crash, etc..? If the issue resurface let us know.

Thanks
Jijo