Switching

Dear all,this is my first post on supportforum, and my question is about no real  and sudden traffic peak on my Cisco Catalyst 3750. I see that problem only on TenG interface.This peak during only few minutes and I'm sure that this traffic isn't real...

HiAny help will be appreciated. See the attached diagram (sorry only have windows paint), the network is 172.16.1.0/24. I have three cisco 3500 series switches (at the top) and 2 x 2960 switch (bottom). the 3500 series switches are attached to access...

hi all,I want to implement full redundancy for the attached topology.Primary Path should be R1 - R2 - R3 - R6 in order to reach 1.1.1.1 to 2.2.2.2if Link between R2 - R3 or R3 - R6 goes down R5 should become activeIf R2 totally goes down only R4 shou...

Hi,We have a 3750X stack of two switches running software 12.2(58)SE2 which has crashed after logging memory allocation errors.  We have this software deployed on numerous other stacks but they are Layer 2 only.  This particular stack is in a develop...

    I have a C3750X switch which was bought with the universal software (C3750E-UNIVERSALK9-M)  but have only the LAN features active. I want to upgrade it to the IP services features so that I can do some dynamic routing on it. But my vendor claims ...

Hi Guys,Good day! Anybody here who has 1861 model C1861-SRST-F/K9?I think the device has only one slot 1 HWIC slot for WAN. As per Cisco's documentation slot doesn't support fxo.http://www.cisco.com/en/US/prod/collateral/routers/ps5853/ps8321/prod_qa...

I learned that 7609-S can not VSS, Can someone please help explaining why this feature is not there? I know 6509s with Sup720 has this feature, but why not 7609-S.Thanks in Advance,A                 

Hi All,  Have a Nexus 5548 (running 6.0.2.N1 OS) connected to a FEX 2248PQ via a QSFP+ to 4SFP+ breakout cable.  All is linked up and operating fine.  The 4 QSFP+ ports on the FEX switch don't seem to have an interface# associated to them.  Therefore...

I am not familiar with TCP. I would like to know what should a router do after receiving the following types of IPv4 packets?Case 1: TCP header length is 0Case 2: all packets’ TCP checksum is fffThanks,Jingyi

I'm new to the Nexus configuration and have a pretty simple question.  Only half of the interfaces on the FEXes I am installing are actually coming up.  The ones that don't come up are in the following state: Ethernet102/1/23 is down (fabricIfDown).N...

Hi I am looking information on the switch  modelWS-C3750X-48P-S  IP BASE IOS :  c3750e-universalk9-mz.122-58.SE2.bin  - IP BASEthe IP base IOS image supports EIGRP stub  configuration ?? , please suggest RegardsLerner

I have 3560E 48 1gb port switches. No port is able to get over 450 mb and they show millions of output drops.  MLS QOS is not enabled. These switches have file servers on them. This is just one port. The drops go up 100s every few seconds.Cab1.1.SW1#...

Hi Team -am working on a project where the engineering group is looking at deploying a pair of Nexus 6001 devices at the Aggregation Layer & a pair of Checkpoint 4800 firewalls in a ClusterXL configuration, wherein the FW's Active/Active mode (aka Lo...