diff options
| author | Fritz Reichmann <fritz@reichmann.nl> | 2011-09-14 20:46:57 +0400 |
|---|---|---|
| committer | Denis Ovsienko <infrastation@yandex.ru> | 2011-09-25 18:15:51 +0400 |
| commit | 4e60f63ccc7a46b1b8500fce657b0164d881a585 (patch) | |
| tree | 933fbaacb904bcb7c3a393e539ca2a3e91a9dbf1 /isisd | |
| parent | d0d29979d05ddc532475b595b32041412de523c7 (diff) | |
isisd: raise hello rate for DIS (BZ#539)
* isis_pdu.c: Divide hello interval by three, depending if we are DIS or
not.
Diffstat (limited to 'isisd')
| -rw-r--r-- | isisd/isis_pdu.c | 26 |
1 files changed, 24 insertions, 2 deletions
diff --git a/isisd/isis_pdu.c b/isisd/isis_pdu.c index 34e4b03d..0896d540 100644 --- a/isisd/isis_pdu.c +++ b/isisd/isis_pdu.c @@ -1943,6 +1943,9 @@ send_hello (struct isis_circuit *circuit, int level) memset (&hello_hdr, 0, sizeof (struct isis_lan_hello_hdr)); interval = circuit->hello_multiplier[level - 1] * circuit->hello_interval[level - 1]; + /* If we are the DIS then hello interval is divided by three, as is the hold-timer */ + if (circuit->u.bc.is_dr[level - 1]) + interval=interval/3; if (interval > USHRT_MAX) interval = USHRT_MAX; hello_hdr.circuit_t = circuit->circuit_is_type; @@ -2065,9 +2068,21 @@ send_lan_l1_hello (struct thread *thread) { struct isis_circuit *circuit; int retval; + unsigned long next_hello; circuit = THREAD_ARG (thread); assert (circuit); + + if (!circuit->area) { + return ISIS_OK; + } + + /* Pseudonode sends hellos three times more than the other nodes */ + if (circuit->u.bc.is_dr[0]) + next_hello=circuit->hello_interval[0]/3+1; + else + next_hello=circuit->hello_interval[0]; + circuit->u.bc.t_send_lan_hello[0] = NULL; if (circuit->u.bc.run_dr_elect[0]) @@ -2078,7 +2093,7 @@ send_lan_l1_hello (struct thread *thread) /* set next timer thread */ THREAD_TIMER_ON (master, circuit->u.bc.t_send_lan_hello[0], send_lan_l1_hello, circuit, - isis_jitter (circuit->hello_interval[0], IIH_JITTER)); + isis_jitter (next_hello, IIH_JITTER)); return retval; } @@ -2088,6 +2103,7 @@ send_lan_l2_hello (struct thread *thread) { struct isis_circuit *circuit; int retval; + unsigned long next_hello; circuit = THREAD_ARG (thread); assert (circuit); @@ -2096,6 +2112,12 @@ send_lan_l2_hello (struct thread *thread) return ISIS_OK; } + /* Pseudonode sends hellos three times more than the other nodes */ + if (circuit->u.bc.is_dr[1]) + next_hello=circuit->hello_interval[1]/3+1; + else + next_hello=circuit->hello_interval[1]; + circuit->u.bc.t_send_lan_hello[1] = NULL; if (circuit->u.bc.run_dr_elect[1]) @@ -2106,7 +2128,7 @@ send_lan_l2_hello (struct thread *thread) /* set next timer thread */ THREAD_TIMER_ON (master, circuit->u.bc.t_send_lan_hello[1], send_lan_l2_hello, circuit, - isis_jitter (circuit->hello_interval[1], IIH_JITTER)); + isis_jitter (next_hello, IIH_JITTER)); return retval; } |