My 2 cents about ACI l2out – its basics, caveats and considerations
When configuring my first L2out I found very minimum documentation explaining the technical side of configuring L2out, its caveats and limitations. Thus the reason for...
VXLAN SVI suspended as soon as VLAN becomes part of vn-segment
When configuring VXLAN with MP-BGP EVPN Control Plane I’ve come across interesting behavior. When assigning VLAN to VXLAN segment (vn-segment) my SVI for that VLAN...
Cisco OTV not AED Capable – Site VLAN Down – VLAN State Inactive
Setting up basic OTV is fairly simple from the configuration point of view (4 lines of code). But if we forget the workflow we may...
UCS Disjoint Layer-2 Networks – Just another tag
Disjoint Layer 2 Network feature has been around since 2.0 UCSM. That being said this is not something new that you’ll find in this post...
Packet Tracer fails with “ERROR: TRACER: NP failed tracing packet”
If you are getting this error message when trying to do packet tracer you hit a bug CSCvi37889. asa/pri/act# packet-tracer input inside tcp 10.1.0.10 1235 8.8.8.8...
Cisco ASA VPN Control Plane Bug after upgrade to asa964-12 causing MM_WAIT_MSG2
Recently, I had the privilege to experience yet another Cisco Bug. After upgrading from 9.4.x to 9.6.x my VPN control plane crashed causing all of...
power supply 2: failed or not powered up
If you are getting the intermittent power supply failure/recovery logs it could be due to a cosmetic bug....