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Forum Posts
Have a mgmt vlan on a WS-C3750E-48PD IOS - 15.0(1)SE (yes...I should probably update...will get to that...but...curious about this)and it randomly goes down for about 10 minutes at a time...no real pattern to when it goes down.interface is setup lik...
Hello there.I'm trying to create an environment with two VLANs, guest and corporate, both using different default gateways, but able to ping IPs between VLANs. I need to have DHCP leases issued by the server rather than the router, but I'm having som...
Good Day,We have had some issues in the last couple of months with people plugging in devices to the network that caused network loops in the environment that STP did not seem to resolve. People plugging in VOIP phones to wrong ports and hubs into th...
Resolved! 3750-X Switch CPU Utilisation
Hi We currently have one of our switches showing extremely high CPU utilisation over a prolonged period of time. I am trying to get to the bottom of this and when i run the show processes cpu sorted I get this outcomeCPU utilization for five seconds...
HiI have a server, that monitors the virtual hosts by send pings to them. When a virtual host is down, the server will send out an alert. This server and hosts are currently on VLAN 1.After upgrading the core network, I noticed the alerts not working...
It is based on the conversion process of a Cisco 6500 Series switch (WS-Sup720-3B release) w/MSFC3 from a hybrid mode (CatOS/IOS) over to a native mode. I've found a few conversion processes online however, I do not know which process is the best to ...
Resolved! Transit Links Ether-channel?
Currently our router in office A has a 1 gig circuit connecting it to router in office B, (L3 link, office A and Office B routers are BGP neighbors)I want to increase link bandwidth capacity but also have carrier redundancy, is it possible to purchas...
Hi,I would like to configure multiple isolated Vlans on the same private (primary) vlan. Is this possible ?I currently have one isolated and 2-4 communities but was wondering if each of web servers can be placed in its own isolated vlan ?i am using...
Hello everyone, we have a bit of an odd issue. Can you take a look at the attached capture file and tell me what's broken? Please change the file extension from .txt to .pcapng and open with Wireshark. We have a major issue where clients cannot retr...
I've been using the DPC3825 gateway to forward port to my server. It's not long ago that I realised the page for port forwarding had disappeared. I'm confused and now I can't configure the port forwarding any more. Please can anyone tell me what caus...
hi, could you please tell me what is the difference between datetime and uptime !? when we configure: service timestamps log uptimeandservice timestamps log datetime ????
Resolved! What is arp server arpa alies
I want to know what is use of this command and what is that mac address which are same for all server (X.X.0.1,2,3)arp vrf server X.X.0.1 0000.p0rc.defg arpa aliasarp vrf server X.X.0.2 0000.p0rc.defg arpa aliasarp vrf server X.X.0.3.6 0000.p0rc.defg...
I have two data centers using ASR 1002x configured for unicast OTV as the DCI.... and all is operational.A Nexus 9K is the core switch in DC1 and a 6500 is the core switch in DC2 I now need to route non-otv vlans between data centers.Questions:1. is ...
Hello All, I wanted to ask that if i have a whole campus with light weight AP's and i want one AP to be in autonomous mode, then will there still be Seamless roaming between light weight and standalone AP's??? Thanks
Resolved! Configure NTP on switch
Hello. This should be easy, but for some reason it is not....Background: trying to configure NTP on a core switch. Edge ASA has NTP configured on it and it is working.Issue: I cannot get core switch to synch NTP with either the ASA or the same NTP...
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