I am experiencing this problem, can anybody help me to solve this issue.The temperature in the data centre is 20 degree celcius. I have attached the logs of it, please share a solution for it. #show environmentwarning alarm: slot 3 has exceeded the...
Can anyone with a 3850 running the IP Base feature set of IOS XE 3.3.0SE please confirm for me it does *not* run OSPF at all, not even the limited "OSPF for Routed Access" available on IOS IP Base for the 3560/3750 series?
Hi Cisco community, I have a question regarding the security of IPSG. Am I correct in the assumption that IPSG enabled with the interface command (ip verify source) and DHCP-snooping database would not prevent ARP-spoofing attacks as of the reason ...
hello I goofed and uploaded a new image to my Cisco 3750.I deleted the prior image and set the boot flash statement and then used the command boot system flash: old image/new image This caused me to enter into switch: mode I have tried various recove...
I accidentally deleted the IOS on my new switch and hoped someone could tell me how to recover it. I have the image I need on my PC and have booted the switch to the switch: prompt but don't know how to transfer it. The configuration guide tells me...
Dear All, We have Exterity IPTV solution implemented in our network. We have cisco 4507R with 3560 edge switches. Now we are facing lot of multicast/broadcast flooding in our network due to which our voice and data vlans are affected. I ...
configuration :- int vlan X ip add <primary address/Mask> ip add <secondary address/Mask> secondary hsrp version 2 hsrp 110 ip <primaryvip> ip <secondaryVIP> seconday When I checked the Output for hsrp group 110 on Nexus 7K , output displayed HSR...
Hello, I have a guest VLAN for wifi users. The users in this VLAN should not access any other VLAN, the only device plugged on this VLAN is the firewall with dhcp enabled (+AP_802.1q). Currently, the guest VLAN doesn't have a network assigned to it...
Dear All, This is my Network Diagram. When i am trying to ping from my CISCO 4331 Router to another vlan I am unable to ping. I am putting following command. CISCO-4331-ROUTER#ping 192.168.16.1 source 192.168.15.250 or CISCO-4331-ROUTER#ping 192.168...
What is the important configuration need to backup or need to be copy in the distribution switch? because we have plan to replace the DSW but in still in the same model 3750.
Ok, I made a post on reddit but after some discussion I was concerned about port buffers so I figured this was the place to ask. I am trying to create a fault tollerant 10GB connection to my VMWare server/SAN for as cheap as possible. I have done abo...
I'm trying to perform VLAN MAPPING on interfaces, but the command is not available. I've updated the IOS to 15.2(2)E8 and i'm running IP services. Almost as if the command switchport vlan mapping is not there The documentation for 12.2(58) sho...
I am a little bit confused by the E0L announcement for sup7-e (https://www.cisco.com/c/en/us/products/collateral/switches/catalyst-4500-series-switches/eos-eol-notice-c51-738118.html) It says that End of SW Maintenance is Oct 2018. End of Vulnerab...
Hi cisco experts! So i'm a 4-months-old-Network Engineer which has a responsibility to troubleshoot end user's pc and cisco ip phone. Those devices connected to our access switch. I have 2 questions : 1. How to see wich switch interface that associa...
Hi, So for an office that is running Nutanix (1 node and 2 node offices, depends on size) why would I use Nexus say 3k over a Catalyst 9000 series. I am not even considering Nexus 9k for these offices, these are not Data Centers, just larger offi...
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