Slow data transfer between the Internal VLAN and Appnet VLAN.

Question

Izar/Polaris Network Layout:
Big/IP LTM 7000 (Model D110) running F5 OS 12.1.2 - Engineering Hotfix HF1&nbsp;
Spine 1 and Spine 2 devices are Cisco Nexus 9000 C9396PX running NXOS 7.0(3)12(2a).&nbsp;
Software
BIOS: version 07.34&nbsp;
NXOS: version 7.0(3)I2(2a)&nbsp;
BIOS compile time:  08/11/2015&nbsp;
NXOS image file is: bootflash:///nxos.7.0.3.I2.2a.bin&nbsp;
NXOS compile time:  12/14/2015 4:00:00 [12/14/2015 07:23:53]&nbsp;
Hardware
cisco Nexus9000 C9396PX Chassis&nbsp;
Intel(R) Core(TM) i3- CPU @ 2.50GHz with 16401956 kB of memory.&nbsp;
Processor Board ID SAL19017B8S&nbsp;
Spine 1 and Spine 2 Configurations:&nbsp;
Spine1:&nbsp;
vlan 10&nbsp;
name 10Net-Data&nbsp;
vlan 700&nbsp;
name ASM-BigIP&nbsp;
vlan 710&nbsp;
name BigIP-ExchNet&nbsp;
interface port-channel11&nbsp;
description "Spine to Izar Internal"&nbsp;
switchport mode trunk&nbsp;
spanning-tree port type edge trunk&nbsp;
vpc 11&nbsp;
interface port-channel12&nbsp;
description "Spine to Polaris Internal"&nbsp;
switchport mode trunk&nbsp;
spanning-tree port type edge trunk&nbsp;
vpc 12&nbsp;
interface port-channel700&nbsp;
description "Spine to Izar Appnet"&nbsp;
switchport mode trunk&nbsp;
spanning-tree port type edge trunk&nbsp;
vpc 700&nbsp;
interface port-channel701&nbsp;
description "Spine to Polaris Appnet"&nbsp;
switchport mode trunk&nbsp;
spanning-tree port type edge trunk&nbsp;
vpc 701&nbsp;
interface port-channel710&nbsp;
description "Spine to Izar Exchnet"&nbsp;
switchport mode trunk&nbsp;
spanning-tree port type edge trunk&nbsp;
vpc 710&nbsp;
interface port-channel711&nbsp;
description "Spine to Polaris Exchnet"&nbsp;
switchport mode trunk&nbsp;
spanning-tree port type edge trunk&nbsp;
vpc 711&nbsp;
interface Ethernet1/17&nbsp;
description "Izar Internal"&nbsp;
no cdp enable&nbsp;
switchport mode trunk&nbsp;
channel-group 11 mode active&nbsp;
interface Ethernet1/18&nbsp;
description "Polaris Internal"&nbsp;
no cdp enable&nbsp;
switchport mode trunk&nbsp;
channel-group 12 mode active&nbsp;
interface Ethernet1/19&nbsp;
description "Izar Appnet"&nbsp;
no cdp enable&nbsp;
switchport mode trunk&nbsp;
channel-group 700 mode active&nbsp;
interface Ethernet1/20&nbsp;
description "Polaris Appnet"&nbsp;
no cdp enable&nbsp;
switchport mode trunk&nbsp;
channel-group 701 mode active&nbsp;
interface Ethernet1/21&nbsp;
description "Izar Exchnet"&nbsp;
no cdp enable&nbsp;
switchport mode trunk&nbsp;
channel-group 710 mode active&nbsp;
interface Ethernet1/22&nbsp;
description "Polaris Exchnet"&nbsp;
no cdp enable&nbsp;
switchport mode trunk&nbsp;
channel-group 711 mode active&nbsp;
Spine2:&nbsp;
vlan 10&nbsp;
name 10Net-Data&nbsp;
vlan 700&nbsp;
name ASM-BigIP&nbsp;
vlan 710&nbsp;
name BigIP-ExchNet&nbsp;
interface port-channel11&nbsp;
description "Spine to Izar Internal"&nbsp;
switchport mode trunk&nbsp;
spanning-tree port type edge trunk&nbsp;
vpc 11&nbsp;
interface port-channel12&nbsp;
description "Spine to Polaris Internal"&nbsp;
switchport mode trunk&nbsp;
spanning-tree port type edge trunk&nbsp;
vpc 12&nbsp;
interface port-channel700&nbsp;
description "Spine to Izar Appnet"&nbsp;
switchport mode trunk&nbsp;
spanning-tree port type edge trunk&nbsp;
vpc 700&nbsp;
interface port-channel701&nbsp;
description "Spine to Polaris Appnet"&nbsp;
switchport mode trunk&nbsp;
spanning-tree port type edge trunk&nbsp;
vpc 701&nbsp;
interface port-channel710&nbsp;
description "Spine to Izar Exchnet"&nbsp;
switchport mode trunk&nbsp;
spanning-tree port type edge trunk&nbsp;
vpc 710&nbsp;
interface port-channel711&nbsp;
description "Spine to Polaris Exchnet"&nbsp;
switchport mode trunk&nbsp;
spanning-tree port type edge trunk&nbsp;
vpc 711&nbsp;
interface Ethernet1/17&nbsp;
description "Izar Internal"&nbsp;
no cdp enable&nbsp;
switchport mode trunk&nbsp;
channel-group 11 mode active&nbsp;
interface Ethernet1/18&nbsp;
description "Polaris Internal"&nbsp;
no cdp enable&nbsp;
switchport mode trunk&nbsp;
channel-group 12 mode active&nbsp;
interface Ethernet1/19&nbsp;
description "Izar Appnet"&nbsp;
no cdp enable&nbsp;
switchport mode trunk&nbsp;
channel-group 700 mode active&nbsp;
interface Ethernet1/20&nbsp;
description "Polaris Appnet"&nbsp;
no cdp enable&nbsp;
switchport mode trunk&nbsp;
channel-group 701 mode active&nbsp;
interface Ethernet1/21&nbsp;
description "Izar Exchnet"&nbsp;
no cdp enable&nbsp;
switchport mode trunk&nbsp;
channel-group 710 mode active&nbsp;
interface Ethernet1/22&nbsp;
description "Polaris Exchnet"&nbsp;
no cdp enable&nbsp;
switchport mode trunk&nbsp;
channel-group 711 mode active&nbsp;

tom_hurst · Answer

TESTING RESULTS:&nbsp;
Izar is Primary.  Polaris is Secondary.&nbsp;
Test results using Iperf3 while testing bandwidth through the Big/IP units:&nbsp;
result  VLAN&nbsp;
Client VLAN APPnet&nbsp;
Server VLAN APPnet&nbsp;
Results: 8.3 Gb/s and 7.7 Gb/s&nbsp;
Client VLAN Internal&nbsp;
Server VLAN Appnet&nbsp;
Results: 48 Mb/s and 27.1 Mb/sand 46 Mb/s&nbsp;
Client VLAN Internal&nbsp;
Server VLAN Internal&nbsp;
Results: 2.04 Gb/s and 1.77 Gb/s&nbsp;
Client VLAN Exchnet&nbsp;
Server VLAN Exchnet&nbsp;
Results:  9.4 Gb/s&nbsp;
Client VLAN Exchnet&nbsp;
Server VLAN Appnet  
&nbsp;
Results: 836 Mb/s and 903 Mb/s&nbsp;

hamish · Answer

A diagram and some hints on how you have configured your BigIP's would be useful.&nbsp;

tom_hurst · Answer

&nbsp;

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Slow data transfer between the Internal VLAN and Appnet VLAN.

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