About e.nieuwstad

e.nieuwstad · 02-20-2025

I have been testing with the moddeling labs sandbox a couple of times but when I load my own lab the connectivity is often broken. All the connectivity is fine when I start the lab with the default topology but the moment I load my own connectivity v...

e.nieuwstad · 01-28-2015

We are in the progress of upgrading our ASR9001 from 4.3.0 to 4.3.4. We are having some issues with the service pack. I prefer to only activate those packages required by the router and no additional ones Install operation 35 '(admin) install act...

e.nieuwstad · 08-20-2014

I want to connect a L2 domain redundantly to A VPLS cloud. I am struggling to get this done without creating any loops.The customer has a its own L2 domain and wants to connect it via L2 to the VPLS cloud. As the customer has also spanned vlans betwe...

e.nieuwstad · 10-14-2013

In ourde design we have a vpc in which some members are Hot-stanby in bundlesh port-channel summary interface port-channel 2Flags: D - Down P - Up in port-channel (members) I - Individual H - Hot-standby (LACP only) s - Suspend...

e.nieuwstad · 05-15-2013

We are building a DCI with vpls. I was wondering how mac address learning works after a vmotion. The minimum time-out which can be configured on the VPLS devices (ASR9000) is 120 seconds. So only after 120 second the original mac entry times out and ...

e.nieuwstad · 02-25-2025

Yes I used the correct vrf. Also the ping initiated from my workstation which has the vpn connection to the lab fails. The connectivity from my workstation to the modeling labs server is working fine.

e.nieuwstad · 02-20-2025

I just did some more testing. Adding a static arp entry on the virtual routers and switches did fix it somewhat but not reliable however it really seems related to some arp process or something related to forwarding broadcasts within the virtual netw...

e.nieuwstad · 02-20-2025

I have created a new and shiny modelling labs sandbox and all connectivity is working from the start then. I exported the default lab, stopped the default lab and imported it as a new one and it is broken. You can see the arp request for the gateway ...

e.nieuwstad · 02-20-2025

My lab has expired at the moment. But the weirdest thing is when I do a packet capture on the link to the unmanaged switch I do see the arp request from the device but no answer from the def gw. As also the connectivity between the various devices is...

e.nieuwstad · 05-20-2015

I am writing a number of modules for Ansible. The first Ansible module logs in to the UCS and gathers some basis facts including a cookie and maybe the priv. These facts are stored internally by Ansible so they can be used in further Ansible plays. S...

Member Since	‎04-10-2005 09:48 AM
Date Last Visited	‎03-04-2025 01:30 PM
Posts	62
Total Helpful Votes Received	10

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Network connectivity in Sandbox moddeling labs broken

ASR9001 upgrade with SP

Pseudowire redundancy

SNMP status of hot standby port-channel member

vpls dci with vmotion

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