From: Shrijeet Mukherjee <shm@cumulusnetworks.com>
To: "Eric W. Biederman" <ebiederm@xmission.com>,
David Miller <davem@davemloft.net>
Cc: netdev@vger.kernel.org, Roopa Prabhu <roopa@cumulusnetworks.com>,
stephen@networkplumber.org, santiago@crfreenet.org
Subject: RE: [PATCH net-next 0/8] Basic MPLS support
Date: Sun, 1 Mar 2015 16:05:49 -0800 [thread overview]
Message-ID: <96cd5ea110617310654d828231f19fd4@mail.gmail.com> (raw)
In-Reply-To: <87mw3yg8da.fsf@x220.int.ebiederm.org>
>There is also my experience in router contexts that says arp or neighbour
>discovery is usually the last thing to know (short of gratuitious arps)
that a
>neighbour has failed. So some other protocol is needed to detect
failure.
Definitely a longer discussion is needed here for the router/switch use
case. Our current position on this (not unique) is to let the protocol
manager which handles the neighbor state machine manage the need or lack
thereof of the GARP's.
This also came up in the L3 offload/switchdev side of the discussion,
where the need maybe more pronounced even.
This has led to mechanisms like BFD to exist which in my opinion causes
more problems than it solves. But sounds like some sunlight on mechanisms
that can be used here may have far reaching benefits.
next prev parent reply other threads:[~2015-03-02 0:05 UTC|newest]
Thread overview: 88+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-02-25 17:09 [PATCH net-next 0/8] Basic MPLS support Eric W. Biederman
2015-02-25 17:13 ` [PATCH net-next 1/8] mpls: Refactor how the mpls module is built Eric W. Biederman
2015-02-26 2:05 ` Simon Horman
2015-02-26 2:15 ` Eric W. Biederman
2015-02-26 2:28 ` Simon Horman
2015-02-25 17:14 ` [PATCH net-next 2/8] mpls: Basic routing support Eric W. Biederman
2015-02-25 17:15 ` [PATCH net-next 3/8] mpls: Add a sysctl to control the size of the mpls label table Eric W. Biederman
2015-02-25 17:16 ` [PATCH net-next 4/8] mpls: Basic support for adding and removing routes Eric W. Biederman
2015-02-25 17:16 ` [PATCH net-next 5/8] mpls: Functions for reading and wrinting mpls labels over netlink Eric W. Biederman
2015-02-25 17:17 ` [PATCH net-next 6/8] mpls: Netlink commands to add, remove, and dump routes Eric W. Biederman
2015-02-25 17:18 ` [PATCH net-next 8/8] ipmpls: Basic device for injecting packets into an mpls tunnel Eric W. Biederman
2015-03-05 9:17 ` Vivek Venkatraman
2015-03-05 14:00 ` Eric W. Biederman
2015-03-05 16:25 ` Vivek Venkatraman
2015-03-05 19:52 ` Eric W. Biederman
2015-03-06 6:05 ` Vivek Venkatraman
2015-03-07 10:36 ` Robert Shearman
2015-03-07 21:12 ` Eric W. Biederman
2015-02-25 17:19 ` [PATCH net-next 7/8] mpls: Multicast route table change notifications Eric W. Biederman
2015-02-26 7:21 ` roopa
2015-02-26 14:03 ` Eric W. Biederman
2015-02-26 15:12 ` roopa
2015-03-05 1:56 ` Andy Gospodarek
2015-02-25 17:37 ` [PATCH iproute2] mpls: Add basic mpls support to iproute Eric W. Biederman
2015-02-26 6:58 ` [PATCH net-next 0/8] Basic MPLS support roopa
2015-02-27 21:21 ` David Miller
2015-02-28 0:58 ` Eric W. Biederman
2015-03-02 0:05 ` Shrijeet Mukherjee [this message]
2015-03-02 4:03 ` David Miller
2015-03-02 5:10 ` Eric W. Biederman
2015-03-02 5:53 ` David Miller
2015-03-02 5:59 ` [PATCH net-next 0/15] Neighbour table and ax25 cleanups Eric W. Biederman
2015-03-02 5:59 ` [PATCH net-next 01/15] ax25: In ax25_rebuild_header add missing kfree_skb Eric W. Biederman
2015-03-02 6:01 ` [PATCH net-next 02/15] rose: Set the destination address in rose_header Eric W. Biederman
2015-03-02 6:02 ` [PATCH net-next 03/15] rose: Transmit packets in rose_xmit not rose_rebuild_header Eric W. Biederman
2015-03-02 6:03 ` [PATCH net-next 04/15] ax25/kiss: Replace ax_header_ops with ax25_header_ops Eric W. Biederman
2015-03-02 6:03 ` [PATCH net-next 05/15] ax25/6pack: Replace sp_header_ops " Eric W. Biederman
2015-03-02 6:04 ` [PATCH net-next 06/15] ax25: Make ax25_header and ax25_rebuild_header static Eric W. Biederman
2015-03-02 6:05 ` [PATCH net-next 07/15] ax25: Refactor to use private neighbour operations Eric W. Biederman
2015-03-02 6:06 ` [PATCH net-next 08/15] arp: Remove special case to give AX25 it's open arp operations Eric W. Biederman
2015-03-02 6:07 ` [PATCH net-next 09/15] neigh: Move neigh_compat_output into ax25_ip.c Eric W. Biederman
2015-03-02 6:08 ` [PATCH net-next 10/15] ax25: Stop calling/abusing dev_rebuild_header Eric W. Biederman
2015-03-02 6:09 ` [PATCH net-next 11/15] ax25: Stop depending on arp_find Eric W. Biederman
2015-03-02 6:11 ` [PATCH net-next 12/15] net: Kill dev_rebuild_header Eric W. Biederman
2015-03-02 6:12 ` [PATCH net-next 13/15] arp: Kill arp_find Eric W. Biederman
2015-03-02 6:13 ` [PATCH net-next 14/15] neigh: Don't require dst in neigh_hh_init Eric W. Biederman
2015-03-02 6:14 ` [PATCH net-next 15/15] neigh: Don't require a dst in neigh_resolve_output Eric W. Biederman
2015-03-02 21:44 ` [PATCH net-next 0/15] Neighbour table and ax25 cleanups David Miller
2015-03-03 15:41 ` [PATCH net-next] ax25: Stop using magic neighbour cache operations Eric W. Biederman
2015-03-03 19:45 ` David Miller
2015-03-03 20:22 ` Eric W. Biederman
2015-03-03 20:33 ` David Miller
2015-03-03 23:09 ` [PATCH net-next 0/2] Neighbour table prep for MPLS Eric W. Biederman
2015-03-03 23:10 ` [PATCH net-next 1/2] neigh: Factor out ___neigh_lookup_noref Eric W. Biederman
2015-03-04 14:53 ` Andy Gospodarek
2015-03-04 15:58 ` Eric W. Biederman
2015-03-04 16:30 ` Andy Gospodarek
2015-03-03 23:11 ` [PATCH net-next 2/2] neigh: Add helper function neigh_xmit Eric W. Biederman
2015-03-04 1:06 ` [PATCH net-next 0/7] Basic MPLS support take 2 Eric W. Biederman
2015-03-04 1:10 ` [PATCH net-next 1/7] mpls: Refactor how the mpls module is built Eric W. Biederman
2015-03-04 1:10 ` [PATCH net-next 2/7] mpls: Basic routing support Eric W. Biederman
2015-03-05 16:36 ` Vivek Venkatraman
2015-03-05 18:42 ` Eric W. Biederman
2015-03-04 1:11 ` [PATCH net-next 3/7] mpls: Add a sysctl to control the size of the mpls label table Eric W. Biederman
2015-03-05 9:45 ` Vivek Venkatraman
2015-03-05 13:22 ` Eric W. Biederman
2015-03-05 14:38 ` Eric W. Biederman
2015-03-05 16:49 ` Vivek Venkatraman
2015-03-04 1:12 ` [PATCH net-next 4/7] mpls: Basic support for adding and removing routes Eric W. Biederman
2015-03-04 8:13 ` roopa
2015-03-04 20:36 ` Eric W. Biederman
2015-03-05 0:30 ` roopa
2015-03-05 2:50 ` Bill Fink
2015-03-05 11:54 ` Eric W. Biederman
2015-03-05 19:10 ` Bill Fink
2015-03-04 1:13 ` [PATCH net-next 5/7] mpls: Functions for reading and wrinting mpls labels over netlink Eric W. Biederman
2015-03-04 1:13 ` [PATCH net-next 6/7] mpls: Netlink commands to add, remove, and dump routes Eric W. Biederman
2015-03-04 1:14 ` [PATCH net-next 7/7] mpls: Multicast route table change notifications Eric W. Biederman
2015-03-04 5:27 ` [PATCH net-next 0/7] Basic MPLS support take 2 David Miller
2015-03-04 6:13 ` Eric W. Biederman
2015-03-04 5:25 ` [PATCH net-next 0/2] Neighbour table prep for MPLS David Miller
2015-03-04 5:53 ` Eric W. Biederman
2015-03-04 14:56 ` Andy Gospodarek
2015-03-04 21:04 ` David Miller
2015-03-05 12:35 ` Eric W. Biederman
2015-03-05 10:14 ` [PATCH net-next] ax25: Stop using magic neighbour cache operations Steven Whitehouse
2015-03-06 20:44 ` Eric W. Biederman
2015-03-14 0:33 ` Steven Whitehouse
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