mukvinman
asked on
Packet loss with IP HASH- HELP!!!
Dear All,
We have 5 ESXi Server jonined a HA cluster. We want to use IP Hash based laod balancing. We have HP BL 680G7 Blade servers with HP GBE2C switch. We have 6 NIC and 2 vLAN needs to be communicated through same. Our 2xGBE2C switch are connected to Nexus 2x2248 switch which then connected to Nexus 2x5010 connected to 2xCISCO 6506 Core switch. The VLAN are defined on Juniper firewall which is conencted to Cisco core switch. there are 6 NIC connected to vSwitch0 and VM Network port group the policy is set to IP HASH. In this scenario we are having packet loss even with ping. We changed the load balancing at switch level and still the packet loss is coming. If we try to switch OFFany GBE2C switch in our blade chassis, all seems to work without any issue, e.g. no packet loss but when we switch ON both switch the packet loss issue is coming.
One more thing, if we set the load balancing to "Based on VLAN ID" then all seems to work well. We want to use IP HASH only as there only we achive true load balancing. Also We have got the configuration checked with VMware L2 and so many other experts and they all say all the config is as per requirement. We are using ESXi v4.1. Can someone help to isolate as we are stuck in this for last 1 month without a solution.
Thanks a ton in advance..
We have 5 ESXi Server jonined a HA cluster. We want to use IP Hash based laod balancing. We have HP BL 680G7 Blade servers with HP GBE2C switch. We have 6 NIC and 2 vLAN needs to be communicated through same. Our 2xGBE2C switch are connected to Nexus 2x2248 switch which then connected to Nexus 2x5010 connected to 2xCISCO 6506 Core switch. The VLAN are defined on Juniper firewall which is conencted to Cisco core switch. there are 6 NIC connected to vSwitch0 and VM Network port group the policy is set to IP HASH. In this scenario we are having packet loss even with ping. We changed the load balancing at switch level and still the packet loss is coming. If we try to switch OFFany GBE2C switch in our blade chassis, all seems to work without any issue, e.g. no packet loss but when we switch ON both switch the packet loss issue is coming.
One more thing, if we set the load balancing to "Based on VLAN ID" then all seems to work well. We want to use IP HASH only as there only we achive true load balancing. Also We have got the configuration checked with VMware L2 and so many other experts and they all say all the config is as per requirement. We are using ESXi v4.1. Can someone help to isolate as we are stuck in this for last 1 month without a solution.
Thanks a ton in advance..
Has this vmware kb been reviewed:
http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=1004048
http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=1004048
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esxi doesnt support 2 eather tunnels in IP hash
ASKER
BTH-SF-N5k-01# sh int ethernet 101/1/1 switchport
Name: Ethernet101/1/1
Switchport: Enabled
Switchport Monitor: Not enabled
Operational Mode: trunk
Access Mode VLAN: 1 (default)
Trunking Native Mode VLAN: 1 (default)
Trunking VLANs Enabled: 1-3967,4048-4093
Administrative private-vlan primary host-association: none
Administrative private-vlan secondary host-association: none
Administrative private-vlan primary mapping: none
Administrative private-vlan secondary mapping: none
Administrative private-vlan trunk native VLAN: none
Administrative private-vlan trunk encapsulation: dot1q
Administrative private-vlan trunk normal VLANs: none
Administrative private-vlan trunk private VLANs:
Operational private-vlan: none
Unknown unicast blocked: disabled
Unknown multicast blocked: disabled
BTH-CR-6506-02#sh int tenGigabitEthernet 1/15 switchport
Name: Te1/15
Switchport: Enabled
Administrative Mode: trunk
Operational Mode: trunk (member of bundle Po4)
Administrative Trunking Encapsulation: dot1q
Operational Trunking Encapsulation: dot1q
Negotiation of Trunking: On
Access Mode VLAN: 1 (default)
Trunking Native Mode VLAN: 1 (default)
Administrative Native VLAN tagging: enabled
Operational Native VLAN tagging: disabled
Voice VLAN: none
Administrative private-vlan host-association: none
Administrative private-vlan mapping: none
Operational private-vlan: none
Trunking VLANs Enabled: ALL
Pruning VLANs Enabled: 2-1001
Capture Mode Disabled
Capture VLANs Allowed: ALL
Unknown unicast blocked: disabled
Unknown multicast blocked: disabled
We have tried so many options but nothing seems to work, so please help.
Thanks again...