Automatic Link Aggregation on EXSi-facing Ports for vCenter


Currently, automatic Link Aggregation (LAG) is only supported between Pluribus Networks switches. With this new feature, automatic Link Aggregation (LAG) includes ports between Pluribus Networks switches and ESXi hosts.


Netvisor One implements LLDP and LACP to bundle the ports. Since there are no custom type-length-value (TLV) probes, Netvisor One implements standard LLDP TLVs to uniquely identify ESXi hosts. The system description TLV is used to identify ESXi hosts and the system name is used to uniquely identify a specific ESXi host.


LACP mode is enabled and set to active on auto-lag with a fallback-option of individual to ensure that there is extra robustness in bundling and ensure that ports are bundled only if ESXi host is running LACP to avoid any data path issues.


There is a new parameter to enable or disable trunking towards hosts. The default value is off.


The current global parameter auto-trunk needs to be ON (default) for this new settings to take effect. Setting auto-trunk to off turns off all trunking.


CLI (network-admin@Leaf1) > system-settings-show


auto-host-trunk:               on

 

 

Example output from trunk-show, port-show and lldb-show.


CLI (network-admin@Leaf1) > trunk-show format trunk-id,switch,name,ports,lacp-mode,lacp-fallback,lacp-individual,status,

 

trunk-id switch         name     ports lacp-mode lacp-fallback        

-------- -------------- -------- ----- --------- -------------        

129      Leaf1          auto-129 42,44 active    individual           

 

lacp-individual status

--------------- -----------

none            up,PN-other

 

CLI (network-admin@Leaf1) > port-show port 42,44 format all


port bezel-port vnet hostname status                                  

---- ---------- ---- -------- ---------------------------------------

42   42                       up,PN-other,LLDP,trunk,LACP-PDUs,vlan-up

44   44                       up,PN-other,LLDP,trunk,LACP-PDUs,vlan-up

rswitch rem-ip    rem-mac           lport config  trunk

----------------- ----------------- ------ ------ --------

2987    ::        00:00:00:00:00:00 42    fd,10g  auto-129

2987    ::        00:00:00:00:00:00 44    fd,10g  auto-129

 

 

CLI (network-admin@Leaf1) > lldp-show


local-port chassis-id port-id           port-desc                     

---------- ---------- ----------------- ------------------------------

42         vmnic2     00:50:56:98:07:56 port 25 on dvSwitch DEV-CN-Tests-1

44         vmnic3     00:50:56:98:07:57 port 24 on dvSwitch DEV-CN-Tests-1

sys-name                      

------------------------------

esx-dev01.pluribusnetworks.com

esx-dev01.pluribusnetworks.com