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Need help with Alteon 3408 & Solaris 9 IPMP

Hi,

I have two Alteon 3408 running in a redundant configuration. The servers & the virtual IP are on the same subnet. The servers are Sun Solaris 9 boxes running IPMP & the connecitivty is like this:

_________ _________ | Alteon 1 | | Alteon 2 |

---------------- ---------------- | \\ / | | \\ / | | /\\ | | / \\ | | / \\ | Server 1 Server 2

I've configured the real servers, real group, virtual server & configured the ports as server. The application I want to load balance is Apache running on port 80. The virtual server is pingable & accessible from the Alteon only & not from the boxes on the same subnet. When I checked the ARP able on the Alteon I saw that the VIP I've configured (172.16.2.42) does not have any VLAN ID against it. See below:

IP address Flags MAC address VLAN Age Port Referenced SPs --------------- ----- ----------------- ---- --- -----

---------------- 172.16.2.15 00:03:ba:9d:41:75 1 35 2 empty 172.16.2.16 00:03:ba:96:f7:6b 1 36 2 empty 172.16.2.18 00:03:ba:2c:ec:82 1 36 2 empty 172.16.2.19 00:03:ba:86:36:d7 1 36 2 empty 172.16.2.39 00:03:ba:f2:9f:ae 1 36 7 empty 172.16.2.42 P 4 00:11:f9:c9:33:0e 1-4 172.16.2.55 P 00:11:f9:c9:33:00 1 1-4 172.16.2.56 P 4 00:00:5e:00:01:09 1 1-4 172.16.2.57 P 4 00:00:5e:00:01:07 1 1-4 172.16.2.130 00:08:7c:bc:b0:40 1 36 2 empty

The configuration I've done is:

-------------------------------------------------------------------------------------------------------- /cfg/slb/real 5 rip 172.16.2.38 ena

/cfg/slb/real 6 rip 172.16.2.39 ena

/cfg/slb/group 3 add 5 add 6 metric round health tcp

/cfg/slb/virt 3 vip 172.16.2.42 ena service http group 3

/cfg/slb/port 7 server e

/cfg/slb/port 8 server e

-------------------------------------------------------------------------------------------------------- What can be the reason for this? All 8 ports are in the same VLAN & the Alteons already are running two different virtual servers fine with VRRP. I'll appreciate the help

Reply to
khurramtm
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Hi,

I have two Alteon 3408 running in a redundant configuration. The servers & the virtual IP are on the same subnet. The servers are Sun Solaris 9 boxes running IPMP & the connecitivty is like this:

_________ _________ | Alteon 1 | | Alteon 2 |

---------------- ---------------- | \\ / | | \\ / | | /\\ | | / \\ | | / \\ | Server 1 Server 2

I've configured the real servers, real group, virtual server & configured the ports as server. The application I want to load balance is Apache running on port 80. The virtual server is pingable & accessible from the Alteon only & not from the boxes on the same subnet. When I checked the ARP able on the Alteon I saw that the VIP I've configured (172.16.2.42) does not have any VLAN ID against it. See below:

> Address Resolution Protocol# dump

IP address Flags MAC address VLAN Age Port Referenced SPs --------------- ----- ----------------- ---- --- -----

---------------- 172.16.2.15 00:03:ba:9d:41:75 1 35 2 empty 172.16.2.16 00:03:ba:96:f7:6b 1 36 2 empty 172.16.2.18 00:03:ba:2c:ec:82 1 36 2 empty 172.16.2.19 00:03:ba:86:36:d7 1 36 2 empty 172.16.2.39 00:03:ba:f2:9f:ae 1 36 7 empty 172.16.2.42 P 4 00:11:f9:c9:33:0e 1-4 172.16.2.55 P 00:11:f9:c9:33:00 1 1-4 172.16.2.56 P 4 00:00:5e:00:01:09 1 1-4 172.16.2.57 P 4 00:00:5e:00:01:07 1 1-4 172.16.2.130 00:08:7c:bc:b0:40 1 36 2 empty

The configuration I've done is:

-------------------------------------------------------------------------------------------------------- /cfg/slb/real 5 rip 172.16.2.38 ena

/cfg/slb/real 6 rip 172.16.2.39 ena

/cfg/slb/group 3 add 5 add 6 metric round health tcp

/cfg/slb/virt 3 vip 172.16.2.42 ena service http group 3

/cfg/slb/port 7 server e

/cfg/slb/port 8 server e

-------------------------------------------------------------------------------------------------------- What can be the reason for this? All 8 ports are in the same VLAN & the Alteons already are running two different virtual servers fine with VRRP. I'll appreciate the help

Reply to
Sting

Hi,

I have two Alteon 3408 running in a redundant configuration. The servers & the virtual IP are on the same subnet. The servers are Sun Solaris 9 boxes running IPMP & the connecitivty is like this:

_________ _________ | Alteon 1 | | Alteon 2 |

---------------- ---------------- | \\ / | | \\ / | | /\\ | | / \\ | | / \\ | Server 1 Server 2

I've configured the real servers, real group, virtual server & configured the ports as server. The application I want to load balance is Apache running on port 80. The virtual server is pingable & accessible from the Alteon only & not from the boxes on the same subnet. When I checked the ARP able on the Alteon I saw that the VIP I've configured (172.16.2.42) does not have any VLAN ID against it. See below:

IP address Flags MAC address VLAN Age Port Referenced SPs --------------- ----- ----------------- ---- --- -----

---------------- 172.16.2.15 00:03:ba:9d:41:75 1 35 2 empty 172.16.2.16 00:03:ba:96:f7:6b 1 36 2 empty 172.16.2.18 00:03:ba:2c:ec:82 1 36 2 empty 172.16.2.19 00:03:ba:86:36:d7 1 36 2 empty 172.16.2.39 00:03:ba:f2:9f:ae 1 36 7 empty 172.16.2.42 P 4 00:11:f9:c9:33:0e 1-4 172.16.2.55 P 00:11:f9:c9:33:00 1 1-4 172.16.2.56 P 4 00:00:5e:00:01:09 1 1-4 172.16.2.57 P 4 00:00:5e:00:01:07 1 1-4 172.16.2.130 00:08:7c:bc:b0:40 1 36 2 empty

The configuration I've done is:

-------------------------------------------------------------------------------------------------------- /cfg/slb/real 5 rip 172.16.2.38 ena

/cfg/slb/real 6 rip 172.16.2.39 ena

/cfg/slb/group 3 add 5 add 6 metric round health tcp

/cfg/slb/virt 3 vip 172.16.2.42 ena service http group 3

/cfg/slb/port 7 server e

/cfg/slb/port 8 server e

-------------------------------------------------------------------------------------------------------- What can be the reason for this? All 8 ports are in the same VLAN & the Alteons already are running two different virtual servers fine with VRRP. I'll appreciate the help

Reply to
Sting

Sting

You have to set proxy IP in order to let SLB function works properly. Base on your configuraiton, the clients and servers are in the same VLAN. So, data flow at this architecture shold be client --> Alteon -->

Server --> Client.

SLB should be done while the request and response traffic pass through Alteon. Because the clients and servers are in the same VLAN, server response connection directly back to clients and this cause SLB fail.

Set a proxy IP at the server port. The source IP of packets from client will be replace by proxy IP and server will response to Alteon.

Regards

Reply to
Dophi

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