About 2ndcongress

2ndcongress · 12-05-2018

I have a 3850 L3 core switch with VLANs in three different routing domains (global, vrf Inside and vrf DMZ). My DNS servers and other resources are in global VLANs. Hosts in each of the two vrf's need to be able to connect to DNS servers in a global ...

2ndcongress · 01-25-2018

Is it possible to change (increase) the Global MTU value on a 3850 stack without rebooting the stack? We're finding mixed information on this subject. We have a production core switch stack of 3, WS-C3850-24XS switches on version 03.07.04E. The G...

2ndcongress · 06-14-2017

Dear Experts, We're working with a client to redesign their datacenter network from scratch. Client has plenty of equipment so we have a fair amount of flexibility in how the new network will be put together. Having read a number of forum posts an...

2ndcongress · 05-24-2017

Posting to ask for advice on a switching/security question. We have a datacenter with two ISP's. We want to split the ISP connections so that we can effectively share these ISP connections at the outside edge of our network. I have done this in t...

2ndcongress · 09-08-2014

I have a strange situation with a 2960s. After attempting to upgrade the IOS version to 150-2.SE4, the switch appears to load the image and boot normally, but then seems to fail and start over again to load the image (more slowly the second time). ...

2ndcongress · 12-06-2018

The VRFs were needed for a complex migration of a vmware farm where the old and new environments have completely different ingress/egress but share the same core switch (until the old environment can be fully decommissioned). There were a few host se...

2ndcongress · 12-06-2018

That worked beautifully, thank you very much!

2ndcongress · 01-28-2011

We solved the problem by downgrading the IOS version from 12.4 T4 to 12.4 T2. Also made change suggested by halijenn to allow allow VPN pool access to inside, but found that this alone didn't solve the problem (but was still necessary).

2ndcongress · 07-27-2010

Very helpful, thanks Matt.In this case, a 1+1 configuration is all that is needed. 7816 servers are more than enough horsepower for the job (<100 phones), but 7825 servers were purchased, along with all the DL's that are now tied to one of the 7825'...

Member Since	‎06-04-2010 07:24 PM
Date Last Visited	‎12-12-2018 08:33 PM
Posts	14

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How to leak routes between vrf VLANs and global VLANs on same switch

3850 Global MTU: Increase without rebooting stack?

2 ISPs, 2 BGP routers, 1 Firewall, L3 core: What's the best way to balance outbound traffic?

Using ports on core switch to split ISP connections?

2960s fails to boot normally after upgrade

Re: How to leak routes between vrf VLANs and global VLANs on same switch

Re: How to leak routes between vrf VLANs and global VLANs on same switch

Re: VPN users can't reach inside hosts after change to Zone Base

Re: Purchase/install 7816 Node License on 7825 or 7845 server?