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Today's Topics:
1. RE: multi interfaces(vlans) configuration (Ahiya Zadok)
2. traffic generator -recommendations (ahiya)
----------------------------------------------------------------------
Message: 1
Date: Tue, 13 Oct 2020 13:59:19 +0300
From: Ahiya Zadok <ah...@younity.io>
To: Users of ISC DHCP <dhcp-users@lists.isc.org>
Subject: RE: multi interfaces(vlans) configuration
Message-ID: <92894e6c2239c07eaa123ce9fd780...@mail.gmail.com>
Content-Type: text/plain; charset="UTF-8"
Eventually, I understood that the DHCP relay limitation isn't real
I was misled by the vendor's support engineer.
Thank you all for responding
-----Original Message-----
From: dhcp-users <dhcp-users-boun...@lists.isc.org> On Behalf Of Simon
Hobson
Sent: Friday, October 9, 2020 5:17 PM
To: Users of ISC DHCP <dhcp-users@lists.isc.org>
Subject: Re: multi interfaces(vlans) configuration
> On 9 Oct 2020, at 07:02, sth...@nethelp.no wrote:
>
>> ISC dhcpd needs to access the raw ethernet interface, so doesn't play
>> well with vlan sub-interfaces.
>
> "Doesn't play well with vlan sub-interfaces" may be the case for Linux.
> We're running ISC dcpd with multiple VLANs on FreeBSD, and it seems to
> work just fine.
I'm pretty certain I've done it with linux in the past. Does "raw packet"
literally mean "packet from the NIC buffer", or does it mean "packet from
the OS buffer after the OS has done the VLAN stuff" ?
Without any knowledge of how it's actually done, it would seem logical to
me for the VLAN (and link aggregation/bonding) code to handle that aspect
before squirting the packet into the packet buffer ready to go into the
rest of the network stack. So tagged packet in -> tag stripped by VLAN
code -> packet put into buffer as though it had been received that way
(untagged) on that interface.
Simon
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------------------------------
Message: 2
Date: Tue, 13 Oct 2020 06:22:38 -0500 (CDT)
From: ahiya <ah...@younity.io>
To: dhcp-users@lists.isc.org
Subject: traffic generator -recommendations
Message-ID: <1602588158934-0.p...@n4.nabble.com>
Content-Type: text/plain; charset=UTF-8
hi AllI'm planning to implement Kea-dhcp4 to serve around 500 subnets with
5000 devices, I don't think the requests per sec rate will be high, it
MDUs.I'm using FG as a DHCP relay.I?ve performed some functionality tests
and it seems to work fine.I wanted to perform some load tests.I've to
install Kea-admin on ubuntu 18.04 VM and use the perfdhcp app.but I can't
make it quite work. all I see in my DHCP log are "DHCP4_LEASE_ADVERT"
messages and no "DHCP4_LEASE_ALLOC".and all sent packets are dropped
according to perfdhcp report.I've tried various clients numbers the lower
number of requests and low the rate but it didn't work.any ideas?and dose
any one know if perfdhcp support sending from multiple interfaces?thanks in
advanceRunning: perfdhcp -l vlan550 -n 20 -p 1 -r 100 -R 30Scenario:
basic.***Rate statistics***Rate: 0 4-way exchanges/second, expected rate:
100***Statistics for: DISCOVER-OFFER***sent packets: 20received packets:
0drops: 20drops ratio: 100 %orphans: 0min delay: inf msavg delay: min delay:
n/aavg delay: n/amax delay: n/astd deviation: n/acollected packets:
0***Statistics for: REQUEST-ACK***sent packets: 0received packets: 0drops:
0drops ratio: -nan %orphans: 0min delay: inf msavg delay: min delay: n/aavg
delay: n/amax delay: n/astd deviation: n/acollected packets: 0
--
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------------------------------
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End of dhcp-users Digest, Vol 144, Issue 10
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