Switching

Hi all,On my two Cisco 3020 switches (please see attached pic) I see many syslog messages:%SW_MATM-4-MACFLAP_NOTIF: Host MAC_ADDRESS_OF_SW3 in vlan 100 is flapping between port Gi0/21 and port Gi0/23This interface flapping messages are for all vlans ...

Cisco Packet Tracer assignment. Help, pleasePlease See attached pktI did not understand the topologyI do not understand how should ‘TEST PCs’ communicate w/ any VLANGuidelines to follow-Each PC should be on the VLAN specified-The access point should ...

I cannot figure out why the ACL is not working on a 3750 running 12.2 (55)SE on a trunk port.  For testing, there is 1 x IP (10.101.15.13) that should be denied to all VLANs on the trunk.  I have tried standard and extended list, but neither seem to ...

Hello all,We had problems with voice quality recently. The issue was with local calls between analog and IP phone or between analog phones (each connected to different voice GW) while crackling was heard only on IP phone. It all pointed to QoS since ...

Hi allDatasheet says about acl on n3k:Standard and extended Layer 3 to 4 ACLs include IPv4, Internet Control Message Protocol (ICMP), TCP, and User Datagram Protocol (UDP)I would to know that I can create Standard and extended Layer 3 to 4 ACLs inclu...

So the situation here is :I have a layer 3 switch who is connected to a layer 2 ( d-link) switch via trunk line on the gi0/46 of the layer 3 switch.I implement my ACL on this gi0/46 port inbound but I can't do this outbound on this port? it says "inv...

Hi All, I have a query. Unable to ping Server ip address located in other location,unable to ping server ip from GB site to Horw site, server is located at Horw site. when try to ping from LAN/Access switch it will not ping, but i can ping from Wan r...

Hi,I have been assigned a task to plan for a 300 seater (site B) for my company expansion in the same location but few miles away. The new site will not be having direct connectivity to my Corporate. All connections to corporate to from the new site ...

My customer's Backbone switch shows a log message as following : Apr  1 14:30:57.041: %C4K_L3HWFORWARDING-4-PROFILEIDMAPTABLEPARITYERROR: Parity error detected and corrected at profileIdMapTable index: 733 What could be the root cause and the workaro...

Hi Team, We have redundant Computers connected to Switch . There is the third  system also connected to the switch.We want the two redundant PC ethernet to look like one for the third system. We want a virtual IP for the third System to get connected...

Hi Guys, We just purchased 2 Nexus 3064T switches for our iscsi network. These switches will be on a dedicated iscsi network. We only need one vlan. Is it okay to have all the ports in vlan 1 for our iscsi devices or should i create a second vlan for...

Hi I know the recommendation a couple of years back was only to connect servers to FEX ports. Is this still the case? Is anyone connecting devices other than servers to FEX ports? Is there any good reason I could not connect a router to my FEX 2232 T...