ligang/vpp

Files

Steven 0d88301a57 bond: performance harvesting

- hash is great. But it is a bit too slow for the DP. Use direct array indexing
to quickly retrieve the slave interface.
- the algorithm used by flow hash is great. But it is a bit too slow for the DP.
Use l2_hash_hash() extracted from lb_hash.h which ECMP is using. It makes use
of intrinsic crc32 instruction set.
- shortcut modulo arithmetic when the operand is 2**x (where x up to 4) to
avoid division instruction.
- special case for link count == 1 in bond_tx_fn()
- use clib_mem_unaligned to access data for the packet to avoid alignment error
- Fix some typos for packet tracing.

Change-Id: I8eae3ad497061c5473aa675ba894ee0211120d25
Signed-off-by: Steven <sluong@cisco.com>

2018-05-25 11:46:05 +00:00

4.3 KiB

Raw Blame History

VPP Link Aggregation Control Protocol (LACP) implementation

This document is to describe the usage of VPP LACP implementation.

LACP

The Link Aggregation Control Protocol (LACP) is an 802.3ad standard which provides a protocol for exchanging information between Partner Systems on a link to allow their protocol instances to reach agreement on the Link Aggregation Group to which the link belongs and enable transmission and reception for the higher layer. Multiple links may be bundled to the same Aggregation Group to form a high bandwidth transmission medium and create a fault-tolerant link.

Configuration

Create the bond interface create bond mode lacp [hw-addr ] [load-balance { l2 | l23 | l34 }]
Enslave the physical interface to the bond bond add [passive] [long-timeout]"
Delete the bond interface delete bond { | sw_if_index <sw_idx>}
Detach the slave interface from the bond bond del

Configuration example

create bond mode lacp
set interface state BondEthernet0 up
bond add BondEthernet0 TenGigabitEthernet7/0/0
bond add BondEthernet0 TenGigabitEthernet7/0/1
bond add BondEthernet0 TenGigabitEthernet5/0/0
bond add BondEthernet0 TenGigabitEthernet5/0/1

bond del TenGigabitEthernet5/0/1

delete bond BondEthernet0

Operational data

show lacp [<interface>] [details]

Example:

DBGvpp# show lacp
                                                        actor state                      partner state
interface name            sw_if_index  bond interface   exp/def/dis/col/syn/agg/tim/act  exp/def/dis/col/syn/agg/tim/act
GigabitEthernet2/0/1      1            BondEthernet0      0   0   1   1   1   1   1   1    0   0   1   1   1   1   1   1
  LAG ID: [(ffff,e4-c7-22-f3-26-71,0000,00ff,0001), (ffff,fc-99-47-4a-0c-8b,0009,00ff,0001)]
  RX-state: CURRENT, TX-state: TRANSMIT, MUX-state: COLLECTING_DISTRIBUTING, PTX-state: PERIODIC_TX
TenGigabitEthernet4/0/0   2            BondEthernet1      0   0   1   1   1   1   1   1    0   0   1   1   1   1   0   1
  LAG ID: [(ffff,90-e2-ba-76-cf-2d,0001,00ff,0001), (8000,00-2a-6a-e5-50-c1,0140,8000,011d)]
  RX-state: CURRENT, TX-state: TRANSMIT, MUX-state: COLLECTING_DISTRIBUTING, PTX-state: PERIODIC_TX
TenGigabitEthernet4/0/1   3            BondEthernet1      0   0   1   1   1   1   1   1    0   0   1   1   1   1   0   1
  LAG ID: [(ffff,90-e2-ba-76-cf-2d,0001,00ff,0002), (8000,00-2a-6a-e5-50-c1,0140,8000,011e)]
  RX-state: CURRENT, TX-state: TRANSMIT, MUX-state: COLLECTING_DISTRIBUTING, PTX-state: PERIODIC_TX
TenGigabitEthernet8/0/1   7            BondEthernet1      0   0   1   1   1   1   1   1    0   0   1   1   1   1   0   1
  LAG ID: [(ffff,90-e2-ba-76-cf-2d,0001,00ff,0003), (8000,00-2a-6a-e5-50-01,007a,8000,0114)]
  RX-state: CURRENT, TX-state: TRANSMIT, MUX-state: COLLECTING_DISTRIBUTING, PTX-state: PERIODIC_TX
TenGigabitEthernet8/0/0   6            BondEthernet1      0   0   1   1   1   1   1   1    0   0   1   1   1   1   0   1
  LAG ID: [(ffff,90-e2-ba-76-cf-2d,0001,00ff,0004), (8000,00-2a-6a-e5-50-01,007a,8000,0115)]
  RX-state: CURRENT, TX-state: TRANSMIT, MUX-state: COLLECTING_DISTRIBUTING, PTX-state: PERIODIC_TX
TenGigabitEthernet6/0/1   5            BondEthernet2      0   0   1   1   1   1   1   1    0   0   1   1   1   1   1   1
  LAG ID: [(ffff,90-e2-ba-36-31-21,0002,00ff,0001), (ffff,90-e2-ba-29-f5-31,000f,00ff,0002)]
  RX-state: CURRENT, TX-state: TRANSMIT, MUX-state: COLLECTING_DISTRIBUTING, PTX-state: PERIODIC_TX
TenGigabitEthernet6/0/0   4            BondEthernet2      0   0   1   1   1   1   1   1    0   0   1   1   1   1   1   1
  LAG ID: [(ffff,90-e2-ba-36-31-21,0002,00ff,0002), (ffff,90-e2-ba-29-f5-31,000f,00ff,0001)]
  RX-state: CURRENT, TX-state: TRANSMIT, MUX-state: COLLECTING_DISTRIBUTING, PTX-state: PERIODIC_TX
DBGvpp#

show bond [details]