RE: How to test IRDP ?

From: Volkov, Dmitry (Toronto - BCE) (dmitry_volkov@ca.ml.com)
Date: Sun Sep 08 2002 - 18:01:13 GMT-3

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Thanks a lot,
 
Now I can see how irdp preference works (actually it was described earlier
by Maestro Dennis ;)
Lowest number is winner when signs are the same (+ ot -), positive is winner
in case of differnt signs:
 
r10-frame#ro
Gateway Using Interval Priority Interface
170.240.8.1 IRDP 10 50 Ethernet0 winner !!!
170.240.8.2 IRDP 10 100 Ethernet0
 
Default gateway is 170.240.8.1
 
r10-frame#ro
Gateway Using Interval Priority Interface
170.240.8.1 IRDP 8 - 50 Ethernet0
170.240.8.2 IRDP 8 - 100 Ethernet0 winner !!!

Default gateway is 170.240.8.2
 
r10-frame#ro
Gateway Using Interval Priority Interface
170.240.8.1 IRDP 8 50 Ethernet0 winner !!!
170.240.8.2 IRDP 8 - 100 Ethernet0
 
Default gateway is 170.240.8.1
 
r10-frame#ro
Gateway Using Interval Priority Interface
170.240.8.1 IRDP 8 200 Ethernet0 winner !!!
170.240.8.2 IRDP 8 - 100 Ethernet0
 
Default gateway is 170.240.8.1

Thanks,,
 
Dmitry
 

-----Original Message-----
From: Desimone, Aurelio [mailto:ADesimone@refco.com]
Sent: Sunday, September 08, 2002 4:28 PM
To: 'Volkov, Dmitry (Toronto - BCE)'; 'ccielab@groupstudy.com'
Subject: RE: How to test IRDP ?

use 'ip gdp irdp' globally on the host router

Aurelio

-----Original Message-----
From: Volkov, Dmitry (Toronto - BCE) [ mailto:dmitry_volkov@ca.ml.com
<mailto:dmitry_volkov@ca.ml.com> ]
Sent: Sunday, September 08, 2002 3:07 PM
To: 'ccielab@groupstudy.com'
Subject: How to test IRDP ?

Hello,

I'm confused how to test IRDP using router as host. I setup 3 router on
ethernet segment:

R1:
int e0/0
ip add 170.240.8.1/24
ip irdp
ip irdp preference 200

R2:
int e0
ip add 170.240.8.2/24
ip irdp
ip irdp preference 100

R3:
no ip routing
int e0
ip add 170.240.8.9/24
ip irdp

after deb ip icmp enabled, I see on R3

2d22h: ICMP: rdp advert rcvd type 9, code 0, from 170.240.8.1
r9#
2d22h: ICMP: rdp advert rcvd type 9, code 0, from 170.240.8.2

I don't see any routes on R3:
r3#ro
Default gateway is not set

Host Gateway Last Use Total Uses Interface
ICMP redirect cache is empty
r3#

Thank You,

Dmitry

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