It is the correct behaviour. The number of load-balance buckets is always a
power of 2. The lowest value is chosen to achieve the desired ratio to within a
certain margin of error.
/neale
From: <vpp-dev@lists.fd.io> on behalf of "abbas ali chezgi via Lists.Fd.Io"
<chezgi=yahoo....@lists.fd.io>
Reply to: "che...@yahoo.com" <che...@yahoo.com>
Date: Saturday 4 January 2020 at 18:53
To: Vpp-dev <vpp-dev@lists.fd.io>
Cc: "vpp-dev@lists.fd.io" <vpp-dev@lists.fd.io>
Subject: [vpp-dev] multipath dpo buckets is wrong.
when adding multipath route with 2 path for a prefix it shows dpo-load-balance
correctly.
but when update it to 3 path it shows 16 paths with duplicate paths in dpo.
--------------------------------------------------
vppctl show ip fib 10.1.1.0
--------------------------------------------------
ipv4-VRF:0, fib_index:0, flow hash:[src dst sport dport proto ]
locks:[src:plugin-hi:2, src:adjacency:4, src:default-route:1, ]
10.1.1.0/24 fib:0 index:56 locks:2
src:CLI refs:1 src-flags:added,contributing,active,
path-list:[74] locks:8 flags:shared, uPRF-list:80 len:3 itfs:[2, 3, 4, ]
path:[103] pl-index:74 ip4 weight=1 pref=0 attached-nexthop:
oper-flags:resolved,
200.2.4.4 host-eth1
[@0]: ipv4 via 200.2.4.4 host-eth1: mtu:9000 02fe2d8d1e1102fe5ad4c3f80800
path:[102] pl-index:74 ip4 weight=1 pref=0 attached-nexthop:
oper-flags:resolved,
200.2.5.5 host-eth2
[@0]: ipv4 via 200.2.5.5 host-eth2: mtu:9000 02febd7f8d6602fe15460eb30800
path:[104] pl-index:74 ip4 weight=1 pref=0 attached-nexthop:
oper-flags:resolved,
200.2.6.6 host-eth3
[@0]: ipv4 via 200.2.6.6 host-eth3: mtu:9000 02fedcd5da5002fe371ba1df0800
forwarding: unicast-ip4-chain
[@0]: dpo-load-balance: [proto:ip4 index:59 buckets:16 uRPF:80 to:[0:0]]
[0] [@5]: ipv4 via 200.2.4.4 host-eth1: mtu:9000
02fe2d8d1e1102fe5ad4c3f80800
[1] [@5]: ipv4 via 200.2.4.4 host-eth1: mtu:9000
02fe2d8d1e1102fe5ad4c3f80800
[2] [@5]: ipv4 via 200.2.4.4 host-eth1: mtu:9000
02fe2d8d1e1102fe5ad4c3f80800
[3] [@5]: ipv4 via 200.2.4.4 host-eth1: mtu:9000
02fe2d8d1e1102fe5ad4c3f80800
[4] [@5]: ipv4 via 200.2.4.4 host-eth1: mtu:9000
02fe2d8d1e1102fe5ad4c3f80800
[5] [@5]: ipv4 via 200.2.4.4 host-eth1: mtu:9000
02fe2d8d1e1102fe5ad4c3f80800
[6] [@5]: ipv4 via 200.2.5.5 host-eth2: mtu:9000
02febd7f8d6602fe15460eb30800
[7] [@5]: ipv4 via 200.2.5.5 host-eth2: mtu:9000
02febd7f8d6602fe15460eb30800
[8] [@5]: ipv4 via 200.2.5.5 host-eth2: mtu:9000
02febd7f8d6602fe15460eb30800
[9] [@5]: ipv4 via 200.2.5.5 host-eth2: mtu:9000
02febd7f8d6602fe15460eb30800
[10] [@5]: ipv4 via 200.2.5.5 host-eth2: mtu:9000
02febd7f8d6602fe15460eb30800
[11] [@5]: ipv4 via 200.2.6.6 host-eth3: mtu:9000
02fedcd5da5002fe371ba1df0800
[12] [@5]: ipv4 via 200.2.6.6 host-eth3: mtu:9000
02fedcd5da5002fe371ba1df0800
[13] [@5]: ipv4 via 200.2.6.6 host-eth3: mtu:9000
02fedcd5da5002fe371ba1df0800
[14] [@5]: ipv4 via 200.2.6.6 host-eth3: mtu:9000
02fedcd5da5002fe371ba1df0800
[15] [@5]: ipv4 via 200.2.6.6 host-eth3: mtu:9000
02fedcd5da5002fe371ba1df0800
is it my mistake or it is correct behavior?
thanks.
-=-=-=-=-=-=-=-=-=-=-=-
Links: You receive all messages sent to this group.
View/Reply Online (#15053): https://lists.fd.io/g/vpp-dev/message/15053
Mute This Topic: https://lists.fd.io/mt/69414593/21656
Group Owner: vpp-dev+ow...@lists.fd.io
Unsubscribe: https://lists.fd.io/g/vpp-dev/unsub [arch...@mail-archive.com]
-=-=-=-=-=-=-=-=-=-=-=-
