diff options
Diffstat (limited to 'proto/rip/rip.c')
| -rw-r--r-- | proto/rip/rip.c | 43 |
1 files changed, 24 insertions, 19 deletions
diff --git a/proto/rip/rip.c b/proto/rip/rip.c index 54627d5..2826de7 100644 --- a/proto/rip/rip.c +++ b/proto/rip/rip.c @@ -18,6 +18,30 @@ */ +/** + * DOC: Routing information protocol + * + * Rip is pretty simple protocol so half of this code is interface + * with core. We maintain our own linklist of &rip_entry - it serves + * as our small routing table. Within rip_tx(), this list is + * walked, and packet is generated using rip_tx_prepare(). This gets + * tricky because we may need to send more than one packet to one + * destination. Struct &rip_connection is used to hold info such as how + * many of &rip_entry ies we already send, and is also used to protect + * from two concurrent sends to one destination. Each &rip_interface has + * at most one &rip_connection. + * + * We are not going to honour requests for sending part of + * routing table. That would need to turn split horizon off, + * etc. + * + * Triggered updates. RFC says: when triggered update was sent, don't send + * new one for something between 1 and 5 seconds (and send one + * after that). We do something else: once in 5 second + * we look for any changed routes and broadcast them. + */ + + #define LOCAL_DEBUG #include "nest/bird.h" @@ -450,25 +474,6 @@ rip_timer(timer *t) /** * rip_start - initialize instance of rip - * - * Rip is pretty simple protocol so half of this code is interface - * with core. We maintain our own linklist of &rip_entry - it serves - * as our small routing table. Within rip_tx(), this list is - * walked, and packet is generated using rip_tx_prepare(). This gets - * tricky because we may need to send more than one packet to one - * destination. Struct &rip_connection is used to hold info such as how - * many of &rip_entry ies we already send, and is also used to protect - * from two concurrent sends to one destination. Each &rip_interface has - * at most one &rip_connection. - * - * We are not going to honour requests for sending part of - * routing table. That would need to turn split horizon off, - * etc. - * - * Triggered updates. RFC says: when triggered update was sent, don't send - * new one for something between 1 and 5 seconds (and send one - * after that). We do something else: once in 5 second - * we look for any changed routes and broadcast them. */ static int rip_start(struct proto *p) |