Do you have hands-on experience with network management and/or security?
If yes, please participate in this quick online study. We'd like to
understand the top tasks critical to managing & securing your network.
We'd also like to know how you would group ...
A Trunk link is a point-to-point link between two network devices. Trunk
link carry more than one VLAN. With VLAN trunking, we can extend our
configured VLAN across the entire network. Remember, sending information
from an access link on one VLAN to anoth...
This document lists the minimum recommended Cisco NX-OS software release
for use with Cisco Nexus 7000 Series switches for both new deployments
and existing deployments. Since these are minimum release
recommendations, more recent software releases can be...
This post explains the Link de-bounce timer operation when used on SFP+
ports on Nexus switches. Background information on de-bounce timer: The
port de-bounce time is the amount of time that an interface waits to
notify the supervisor of a link going down...
What is Pre-build SPT & what are the benefits:In a VPC scenario, to
ensure the fast multicast convergence in case of VPC fail-over, the
pre-build SPT feature can be used. We can pre-build the SPT for all
known (S,G) in the routing table by triggering PIM ...
Introduction:With the introduction of rfc2328, or OSPFv2, the path
selection criteria for external or summary routes changed.Specifically,
the new changes call for preferring a non-backbone path over a
backbone(area 0) path for the prefix.Previously, we r...
Introduction:As many customers have opened TAC cases about logging
access-lists on the n7k platform, I have put together this quick
configuration guide and explanation to serve as a reference to eliminate
some of the confusion.Keep in mind that ACL loggin...
Hi dear Cisco Experts Can we define a specific packet size for transferring through the network? For Example; we want to send a text file of 150,000 bytes, Can we send it as packets of custom size (for example packets of 13840 bytes) ...
Hello community, I'm trying to do selective QinQ in interfaces. Following the configuration guide here , in the section "Configuring Selective Q-in-Q with Multiple provider VLANs"we see that this should be possible. When I try to confi...
Hello, In our DC we've 1500MTU, we're thinking of increasing it to ~9000. I was wondering do it have any disadvantages ? Especially heard something like it could cause router buffers to overfill ? But it's hard for me understood why i...
Hi Guys,I'm pretty new on the VRF thing but i do think i understand the basics of VRF. We just got a new customer, which we place in a seperate VRF. Now the customers machines will need access to the internet. We have 1 internet connection. What is the be...