My ISP set up an EPL between my two DCs.... We finally got it up after working with them (they had to swap out equipment) but I have a question about STP....  Should I see STP and CDP between my two switches because I'm not.  Each side of the link shows as "root"... I have a VERY basic MST set up with 4 instances .  Everything is working with the exception of the MST root issue.. Is it that they are blocking STP across the link? They continue to tell me they aren't blocking anything but CDP and STP seem to be only things not working....  ... View more

I've got an issue that even TAC is having trouble finding the answer to: I have a customer with a small campus.  At the main agg site, there is a stack of 3650s which also does their routing. At the smaller buildings, there are individual 3650s tied in via gig fiber (single uplink).  They have a helpdesk in the main site also on a 3650 that is connected via cat6 copper.  There are about 20 vlans with vlan 995 being the VoIP vlan.  PCs are connected through the phone PC ports..  Issue: One of the buildings on the campus (call it Bldg A) is having voice issues where the phones just resets by itself. Looking into this, we see logs showing: (Campus Agg switch) %SW_MATM-4-MACFLAP_NOTIF: Host 0007.7d42.ccae in vlan 995 is flapping between port Gi1/0/9  (Uplink to Helpdesk Switch) and port Te4/1/4 (Uplink to smaller bldg) (Bldg A switch) %SW_MATM-4-MACFLAP_NOTIF: Host 0007.7d42.ccae in vlan 995 is flapping between port Gi1/0/6 (User Station) and port Gi1/1/1 (Uplink to Agg Switch) Helpdesk  switch shows nothing in the logs as far as MACFLAPs When I go to Bldg A switch, I see this during that time (it goes back to 1/0/6 for both when good) : nX-C-CHA-2#sh mac add add 0007.7d42.ccae Mac Address Table ------------------------------------------- Vlan Mac Address Type Ports ---- ----------- -------- ----- 407 0007.7d42.ccae DYNAMIC Gi1/0/6 995 0007.7d42.ccae DYNAMIC Gi1/1/1 Total Mac Addresses for this criterion: 2 Vlan Mac Address Type Ports ---- ----------- -------- ----- 407 0007.7d42.ccae DYNAMIC Gi1/0/6 995 0007.7d42.ccae DYNAMIC Gi1/0/6 Total Mac Addresses for this criterion: 2 Unplugging the Helpdesk switch - MACFLAPs go away.  Plugging the uplink in without ANY other ports connected - MACFLAP begins again..  Things we've tried: Packet captures on Helpdesk Switch - Cisco has and saw nothing. Down rev'ing the Helpdesk Switch.  Clearing arp/ Rebooting ALL switches. Replacing Helpdesk switch - this is a brand new switch stack and Bldg A switch less than a year old as well. Did a complete site walk to ensure there were no hubs/desk switches connected.  Spanning-tree shows the proper root ports to the 995 vlan bridge  and all other phones seem to be working fine.  Thoughts?  ... View more

I am trying to find information on connecting my 5672UPs to the HP 8/24 San Switch via native Fiber Channel.  All zoning will be done on the HPs.   The 5Ks will be used to connect multiple SANs (along with 77Ks) via IVR...   I understand there are a number of ways - using interop mode, using npv/npiv, etc...  Is there a cookbook or something that shows the various ways?  ... View more

I have a customer that is using FWSMs.  There are 4 interfaces  (inside 100 , outside 0 , dmz 50 , wireless 4 ).   So to give an example:   1) I connect to the wireless and get an address of 192.168.1.x.  My DNS server is on the dmz and I can resolve addresses and surf the internet. 2) I want to get to a server owned by the customer so I type  http://webapps.customer.com 3) The DNS gives the external address and the attempt is made. 4)  I time out....   If I connect via an external source (like an iPhone using ATT network)  I connect with no problem... I get the same external address.   Thoughts to look at?  I've double checked everything and so far cannot find a good answer... ... View more

Hello, I have two external ISP interfaces and need help with some nat questions. I have a webserver that I wish to advertise out both interfaces. The issue I'm having is exactly how to do it on the ASA with version 9.x code ISP 1:  9.9.9.0 ISP 2: 8.8.8.0 object network webserver host 7.7.7.7 nat (dmz,isp1) static 9.9.9.9 nat (dmz,isp2) static 8.8.8.8 I can't seem to get this working. I'm new to this code but the old code was so much easier with this.... ... View more