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Forum Posts
I just want to know does a port of a switch in Blocking State(Alt.) process the bpdu's?? Like in this given forum https://community.cisco.com/t5/switching/stp-indirect-topology-change/td-p/2202906When SW3(R3) apparently received a inferior bpdu on it...
So, in a topology like three switches connected with each other. Only the root bridge generates CBPDU. So after shutting down sw3's it's e0/0(rp) link as per the rules SW3 will generate TCN and the root(sw1) should generate a cbpdu with tc ack flag ...
Hi,My single SG350X-48P will be replaced by a SG550X-48MP stacked with a SG550XG-8F8T.Is it possible to backup the configuration of the 350 and import it into the 550x-48MP after building up the hybrid-stack?What is the recommended way/steps to trans...
In the book here I read. (cisco ccie routing and switching)SW4 notices that the latest Hellos indicate a new root switch. However, these Hellosfrom SW2 received on SW4’s Fa0/2 port, its current Root Port, are inferior to theBPDU stored on that port. ...
Hi I am having some issues setting up a 2821 to pass internet traffic from a internet router to a layer3 switch.the switch and a pc connected to the switch can ping the outgoing interface on the router but not the other side of the link.The router ca...
Hello Ladies/Gents,I have been trying out MPLS setup on GNS3 Lab. I cannot ping from CE Device: i.e. CE-R11 to CE-R12, these two routers are connected to opposite end of the lab devices.3 routers namely R3, R6 and R1 are core routers running OSPF an...
I loaded a configuration file into a currently blank 9300L switch that was connected to another 9300L switch. After doing the load, verifying everything was there...and I did save the configuration to memory, I reloaded the switch. After waiting a w...
Hi , the connectivity is simple core switch connected to firewall on access port with firewall interface being L3 and core switch being access in transit VLAN. defaukt route on core switch to route for internet and Firewall has specific routes for co...
what is the default cisco router network type in 1. normal Ethernet port to Ethernet port connection: broad cast or non-broadcast? 2. serial link: i know this one is p2p 3. .... and other types plz
We've got a concerning output when we check the power supplies in our dual 9400 core. We're using PS3 and PS4 in the two units. All four power supplies are connected to a good source. PS4 on Core 1 is connected to a 125V power source, the other 3 ...
Can someone help me understand the concep of vtp pruning.In my topology SW1 is the server and the rest are clients. Vlans configured are 10,20,30,40So as far as I know if vtp pruning is enabled and a device in vlan 10 ping to another device on vlan ...
I am looking at upgrading our Top of Rack Nexus 5k switches to new 9k models. These racks are for our VMWare Servers and iSCSI SAN devices (both Dell). I have always used Nexus switches for this rack (since it is storage) and Catalyst switches for ...
Hi All, I'm doing some self-guided Wireshark training on Udemy in order to better understand and troubleshoot my network. One of the topics today was retransmission, which I see a lot of in my captures and something I haven't been able to understand...
I want to know about how a Switch forward it's control plane traffic like cdp/vtp/dtp messages on a trunk. Will they be forwarded with tag or untagged and why??
Hi All, i have an vtp server switch i want that my client switch get an vlan from server switch..but client switch unable to get an vlans from server...please find server switch trunk config:description "3850_Switch_VTP"switchport trunk encapsulation...
