Hi, i recently identified all switch ports in my network on 6509 core were Transmitting Mail server Exchange traffic that was destined for Unicast NLB cluster. and it was impacting various HOST machines NIC cards/performance.After reading this articl...
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Forum Posts
Dear All,I have Cisco switch 3560 and 3750 and i would like to connect both switch with fiber destand 40 Km,Could you let me know which P/N that support on this? Best Regards,Rechard
Hi all,I have a stack of 4 x 3750-E switches that have been fully populated with 10Gbps X2 fibre modules for 10Gbps SAN connectivity. I want to know if there is a bottleneck on the backplane of the stack, either on the individual switch's backplane ...
Hello All, I'm in the process of building a network that will consist of the below:2 Routers (Primary and Backup)2 Switches (16-Ports each)20 IP Phones (10 on each Switch)Voice Gateway (Don't know anything about it)Wireless Access Point (Still no...
Resolved! MS-NLB-virtserver
hellowe installed recently 2 microsoft servers that use network load balancing configured in NIC cards.as a consequence, i discovered that any packet sent to these servers is broadcasted to all switch ports!using sniffer i found that MAc destination ...
Resolved! ISSU in 4503E
Hi all, I want to know that whether ISSU feature is available in 4503-E ? i have heard someone was telling me that ISSU is only supported with redundant supervisers so 4503-E model doesnt support ISSU.Can someone pls confirm
Getting teh following error on my config for a switch.00:36:26: %CDP-4-NATIVE_VLAN_MISMATCH: Native VLAN mismatch discovered on FastEthernet0/1 (1), with sw-testlab. dgit.net GigabitEthernet4/0/20 (104).lab1#show run int vlan 808Current configuration...
What is the reason behind sending the destination mac address first in an ethernet frame?one reson I can think of is- Seding the Dst MAC first will help the switch to take the forwarding decision (cut through switching tech) without waiting for the r...
Hello all,I am trying to understand whether the CCNP route guide's article has no sense or I am a dumbass, because I do not find any sense in the example below:R3 represents a branch office connected to two ISPs. In this scenario Cisco IOS IP SLAs ar...
Hi,I have a Cisco router 1941 with an ADSL card, connecting the ADSL line, i configured a dialer interface but couldnt understand how to bind the dialer with an ethernet interface. I think i should have a bridge cause there is an interface ethernet 0...
Resolved! Etherchannel partners
i just took over the network from someone who left the company. im trying to track down(on a 6509) what devices are connectied to the other side of an etherchannel. is it possiable to view the mac addresses that are connected to the etherchannel?
Can anyone give me a link to where I can find the minimum code version for N55-M16UP expansion card for a Nexus 5k?
Hello,I have enabeld DHCP snooping on a VLAN and left it a few days an enabled Dynamic ARP Inspection and all is good apart from one user who has a static IP so he doesn't appear in the DHCP snooping bindings list, but his port goes into err-disabled...
Hi experts,I am on a call right now troubleshooting some latency issue. The CPU usage on the sup card is low. Don't see any drops or input errors. I am aware that the switch and its modules have capability limits. Is there command I can run which wil...
Hi,I'm trying to enable command authorization for ssh as well as console access to a Nexus 7010 box (version 5.0). Following is the config:aaa group server tacacs+ ACS5-1 server 10.12.19.11 server 10.12.19.12 source-interface loopback0sn...
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