Hello, My post concerns the new technology Stackwise-Virtual on 3850-XS-E. I didn't find a lot of informations appart these informations:- It's only compatible with version Denali 16.3.3.- It works only on 2x 3850 and no more.- We have to configure S...
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When I have to download IOS updates over http, I find that they always seem to pause. The progress indicators stop and if I don't press a key in my cli session they just stay there. As long as I press a key and monitor the pauses it does eventually c...
Hello all, Would like to implement dhcp snooping and arp inspection to prevent L2 attacks. So we can enable dhcp snooping for a week to build the binding table into a file in flash, then enable the arp inspection a week later once the table is popula...
I'm having an weird issue with my 7K nexus switches. Started sometime ago, I can't suddenly ping some servers. They are out for a minute or two and comes back. I know servers are online. Here is what I found. When this happens, I can ping those ...
Hi all I'm creating a Point to Point link between two Nexus Domains. I have done the following and it works, but is this correct or are there potential issues with this. I'm passing this Vlan off through another pair of switches in a vpc domain,...
Which statement about VLAN configuration is true? A. The switch must be in VTP server or transparent mode before you can configure a VLANB. The switch must be in config-vlan mode before you configure an extended VLANC. Dynamic inter-VLAN routing is s...
In router on stick , I face a problem is that when I create two sub-interfaces with two different networks each for a specified VLAN, the devices in those VLANs although they are in different VLANs and subnets, they can see each. I don't know why, if...
Hi All I wanted to enable a priority queue on my 6509 for my voice traffic, however when I apply the policy map to the interface it fails. Can anyone tell me how I can do it? cheers
I have configured a voice and data vlan on a catalyst 3750. The 3750 came with only ipbase ios. This means that i cannot do ip routing at the switch so i cannot route between the voice and data vlan's there. Is routing between the voice and data v...
Does 4500E Sup9E support lisp proxy configuration for non-LISP site to LISP site communication?
Hi, from one of my router (ASR 903) i am trying to ping the switch which is connected below the router with the same network segment but not success even though could able to find the ARP entry in router(ASR 903). what could be the problem?
Hey Guys,I have an issue that I cant find a solution for. I'm implementing VLANs on our network but DHCP is the issue. So for now I have VLAN 32 and 100. Both can talk to each other through the router policy. VLAN 32 receives IPs from (Windows Server...
Hello dears, we have cisco ws-c3850-24s-s in the our network system. İ configured ip helper-address in the interface vlan because we want to scatter the IP from our DHCP server. After that i started to get Bad Address from our DHCP server. Is there...
hi all, i have set up different vlans for my network , vlans on the same subnet mask is working perfectly within the subnet mask of 255.255.255.128 my only issue is inter vlan on different subnet mask, i have a new connection with a subnet 10.140.240...
Security scan showing that my Switch( WS-C2960X-48FPS-L /15.2(2)E5 ) is affected by the below two vulnerabilities: 1. SSH Server CBC Mode Ciphers Enabled 2. SSH Weak MAC Algorithms Enabled 1) i have configured SSH v2 and Crypto key rsa with 204...
