I have two switches running as HSRP and one of L2 switch connected to ASA. Currenty L3 Primary switch is a root bridge. so, in terms of STP, the link between L2 switch and Secondary is not active. I like to change a root bridge to L2, then from server side, it makes more sense that even though the link between Pri and server is disconnected, packet can go through server -> Sec -> L2 -> ASA -> Internet. Unfortunately, if server is sending through traffic through Sec due to VM load balancing algorithm or whatever reason, traffic will go through like that (Server -> Sec -> Pri -> L2 -> ASA -> Internet) That is why I am trying to make L2 switch as root. In that case, which way server is sending (whatever load balance algorithm is used), traffic will not detour to Primary switch.
Now, from L3 perspective. Let us say that I put L2 switch as root, not Primary. I have one more L3 switch (routing) next to primary switch (name: HQ) Then If server is going to reach this HQ switch, how does traffic go? Does traffic go from server to this HQ switch like
1. Server -> Pri -> L2 (because of STP) -> Pri -> HQ
2. Server -> Pri -> HQ (just following routing protocol preference)
I am confused between STP priority vs routing priority when mixed. Thanks.
The L3 IP address maps to a L2 Mac Adresss using ARP protocol. You can trace the path on every switch using the "show mac-address | inc xxxx.xxxx.xxxx" command, in order to find the interface where the switch will send out the frame targeted for certain mac address.
I have Cisco 2960 switch & I am going to use MST for spanning tree Below is the configuration spanning-tree mst configuration name TEST-MST revision 1 instance 1 vlan 101 instance 1 vlan 102 I have 2 VLANS & I wa...
We are having issues with a WS-C2960X-48FPD-L running IOS 15.2(2)E7. Some ports are simply not working. We had POE issues on some of the ports and decided to upgrade to hopefully resolve those issues but this has now become an even bigger issu...
the scenario is :I'm replacing core Cisco switch 4506-E with switch 4507R-E. As I have one supervisor card on 4506-E and I'm going to take out all the card that I have in 4506-E and install it in the new 4507R-E. On the 4507R-E I have 2 slots for the supe...
Since its release in August of 2019, the SASE report released by Gartner has generated a lot of chatter regarding what SASE is all about. People are wondering whether it will be disruptive to the current network and network security designs and are curiou...
I tried to setup a virtual environment with 2960 switches and 2911 Router. In one part of the network where I connected PCs directly to the 2911 Router, I was able to communicate to the attached devices, having configured static route. In the th...