Hi, Thanks for the reply. But my question was why there are 2 types of node in "struct route_node". (MTYPE_ROUTE_SRC_NODE and MTYPE_ROUTE_NODE). e.g., rnode_is_srcnode() and rnode_is_dstnode() . Thanks, Sudhanshu On Mon, Apr 29, 2019 at 5:05 PM Donald Sharp <sharpd@cumulusnetworks.com> wrote:
`struct route_node` -> Table route node data structure contains the prefix and some small additional data useful for keeping track of the node in the table. `struct rib_dest_t` -> A rib node that we have received data about it from an upper level protocol. Contains some additional tracking information that zebra needs to keep track of in relation to the particular prefix in the rib. We do not create a rib_dest_t per route_node. We only create a rib_dest_t( with one caveat ) per routing entry given to zebra. `struct route_entry` -> A route handed to us from another protocol. We can have one of these per protocol running possibly. zebra needs to track the different protocols attempting to install as well as some additional data unique to that route. Zebra chooses one of these route entries to install into the kernel.
I cannot answer the second question.
donald
On Mon, Apr 29, 2019 at 6:51 AM sudhanshu kumar <sudhanshu22@gmail.com> wrote:
Hi, I have 2 questions about zebra in frr. 1. why do we maintain 2 types (source and destination route type) in
zebra. I am not sure what source route type means ? Is it the source of the route (like the packet source or the neighbor from which the route got learnt) ?
2. How does frr routing stack interact with SONIC platform. I see that it has a TCP socket with SONIC which it uses to send messages for all protocols. Is it true ?
Thanks, Sudhanshu ---------- Forwarded message --------- From: sudhanshu kumar <sudhanshu22@gmail.com> Date: Thu, Apr 25, 2019 at 12:06 PM Subject: help: frr interaction with SONIC To: <dev-request@lists.frrouting.org>
Hi, I would like to know how does frr routing stack interact with SONIC platform. I see that it has a TCP socket with SONIC which it uses to send messages for all protocols. Is it true ?
Thanks & Regards, Sudhanshu _______________________________________________ dev mailing list dev@lists.frrouting.org https://lists.frrouting.org/listinfo/dev