Cisco Crosswork Network Insights - or how to destroy a useful service

Hank Nussbacher hank at
Wed May 15 09:50:10 UTC 2019

I have started to use Cisco Crosswork Network Insights which is the 
replacement for BGPmon and I am shocked at how Cisco has managed to 
destroy a useful tool.I have had a paid 50 prefix account since the day 
BGPmon became available and helped two clients implement a 500 prefix 
license over the past 4 years.None will be buying Cisco Crosswork 
Network Insights, based on my recommendation.

I really don’t know where to begin since there is so much to dislike in 
this new GUI.I will try to give you just a small taste but I suggest you 
request a 90 day trial license and try it out for yourself.

This was not designed by someone who deals with BGP hijacks or who 
manages a network.It was probably given to some GUI developer with a 
minimal understanding of what the users needed.How do I know this?Take 
for example the main configuration menu: with the first tab of 
“prefixes”.On that page there is *no* mention of which ASN the prefix is 
associated with.That of course was fundamental in the BGPmon menu:

Or take for example its “express configuration”, where you insert an ASN 
and it automatically finds all prefixes and creates a policy.But does it 
know the name of the ASN?Nope.Something again that was basic in BGPmon 
via: is non-existent in CNI.

Or how about the alarms one gets to an email?Want to see how that looks?

From: Crosswork Admin [mailto:admin at]
Sent: 15 May 2019 11:39
To: Hank Nussbacher <Hank at>
Subject: CCNI Notification

Active alarm count 1 starting at 2019-05-15 08:34:42.960762315 +0000 
UTC. Please click on the link for each alarm below:

Compare that with what we used to get:

Possible Prefix Hijack (Code: 10)

Your prefix:
Prefix Description:Kuku net
Update time:2018-08-12 17:50 (UTC)
Detected by #peers:140
Detected prefix:
Announced by:AS222246 (BGP hijacking Ltd)
Upstream AS:AS111111 (Clueless ISP allowing customer hijacking Ltd)
ASpath:555555 444444 333333 111111 222246
Mark as false alert:

That is just a small sampling.Maybe two years down the road, Cisco will 
speak to customers first before destroying a useful service.

Anyone else trying this out and feels the same or feels differently?


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