Arp table and mac table in cisco 4503 switch

[babu.mathala]

Hi all,

I have a problem with 4503 switch

I have 7 highend servers in my lan i.e 5hp and 2dell servers.

Each server has 4 network interface cards(1g). so 7*4=28 ports.

I have create vlan 70, ip add is 10.70.70.1

I have assign ip address to servers like

first server         10.70.70.2, 10.70.70.12,

Second server   10.70.70.3, 10.70.70.13,

Third server        10.70.70.4, 10.70.70.14,

fourth Server       10.70.70.5, 10.70.70.15, 10.70.70.25, 10.70.70.35

fifth server           10.70.70.6, 10.70.70.16, 10.70.70.26, 10.70.70.36

sixth server          10.70.70.7, 10.70.70.17, 10.70.70.27, 10.70.70.37

seventh server      10.70.70.8, 10.70.70.18, 10.70.70.28, 10.70.70.38

The problem is in four interfaces each server, only one or two interfaces are pinging, remaining interface are not pinging.

for example in the first server i can able to ping 10.70.70.12- macid 60eb.69d2.a2aa

                                            i can't able to ping 10.70.70.2- macid 60eb.69d2.a2ab

second, fourth, fifth, sixth, and seventh continiously pinging successfully.

for example in fourth server i can able to ping 10.70.70.5 macid -b499.bafe.9c98

                                         i can able to ping 10.70.70.15 macid-b499.bafe.9c98

                                         i can able to ping 10.70.70.25 macid-b499.bafe.9c98

                                         i can able to ping 10.70.70.35 macid-b499.bafe.9c98

now you understand what is the problem, which server i am not getting pinging that arp table shows each interface separte mac address

                                                   which server i am getting pinging that arp table shows each interface bind with same mac address(dynamically)

Please give me the solution

[Somasundaram Jayaraman]

Hi,

I Think you need to do Teaming on the servers.

++ configure etherchannel between switch and the server.

configuring etherchannel b/w 4503 and server:

================================

http://www.cisco.com/en/US/tech/tk389/tk213/technologies_configuration_example09186a008089a821.shtml

Sample NIC Teaming - HP NICs with Cisco Switches (EtherChannel) :

==============================================

http://support.citrix.com/article/CTX434260

There are several NIC teaming technologies available today from  switch vendors.  Cisco uses the term “EtherChannel.”  Various switch  vendors use various terms, and these may or may not provide the same  exact functionality. Use of EtherChannel technology requires support  from the server hardware vendor, NIC vendor, and Layer-2 switch vendor.

Hope this helps

Cheers

Somu

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[babu.mathala]

Hi,

Thankyou, I have already tried with etherchannel, then also same problem.

[thelostboy5]

please provide from the 4503

show mac-address table dynamic

show mac-address table static

show arp

please provide from one of the hosts

show arp

confirm the host is binding all the IP addresses to all the interface mac address