NIC Teaming theory question

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hello!

all documentation i've ever seen on nic teaming discribes outbound/inbound traffic distribution using team mode\load  balancing algorithm notation, example (windows server 2012 r2 nic teaming (lbfo) deployment , management.docx): switch independent configuration / address hash distribution.

and when comes explaining, example, how ingress load distributed in scenario it's not clear restricts traffic flow - teaming mode or load balancing algorithm or combination - example, switch independent configuration / address hash distribution mode receives traffic on single nic, regardless of number of nics in team.

" 3.4.3 switch independent configuration / address hash distribution


because given ip address can associated single mac address routing purposes, this mode (?) receives inbound traffic on 1 team member (the primary member). means inbound traffic cannot exceed bandwidth of 1 team member no matter how getting sent."

"3.4.4 switch dependent configuration / address hash distribution

this configuration distribute load through use of selected level of address hashing. defaults using tcp ports , ip addresses seed hash function.

like in switch dependent configurations, switch determines how distribute inbound traffic among team members. switch expected reasonable job of distributing traffic across team members has complete independence determine how so."

having read conclude teaming mode (switch independent) restricts incoming traffic single nic in switch independent configuration/address hash distribution because same  load balancing algorithm - address hash distribution - is used in switch dependent configuration/address hash distribution , mode can use nics inbound traffic.

on other hand, video
(http://www.youtube.com/watch?v=8qrmwpgljek&feature=iv&src_vid=m7exmrxri9y&annotation_id=annotation_1069614903)
shows load balancing algorithm (not regarding teaming mode!) limits number of nics can used incoming traffic:


in case using address hash distribution algorithm in teaming mode (in switch dependent, example) should impose same limits on number of nics used incoming traffic...that contradicts aforementioned windows server 2012 r2 nic teaming (lbfo) deployment , management guide.

q: address hash distribution algorithm alone responsible 1-nic limit inbound traffic?

thank in advance,

michael


hi,

based on knowledge, address hash distribution algorithm not 1 factor affects inbound traffic. complex process, document mentioned,  team mode, load  balancing algorithm have effect on it. 

best regards,
eve wang

please remember mark replies answers if , unmark them if provide no help. if have feedback technet support, contact tnmff@microsoft.com.



Windows Server  >  Windows Server 2012 General



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