diff options
| author | Tobias Waldekranz <tobias@waldekranz.com> | 2024-06-24 15:00:33 +0200 |
|---|---|---|
| committer | Stephen Hemminger <stephen@networkplumber.org> | 2024-07-05 10:22:32 -0700 |
| commit | 3018ea24f3883460b03683954b93dd0ca3f1311d (patch) | |
| tree | f33194c81e701fedbfab9c1272afbeee4cfb077e | |
| parent | 0ea0699ea01df81750becf742083933a23a95d94 (diff) | |
ip: bridge: add support for mst_enabled
When enabled, the bridge's legacy per-VLAN STP facility is replaced
with the Multiple Spanning Tree Protocol (MSTP) compatible version.
Signed-off-by: Tobias Waldekranz <tobias@waldekranz.com>
Reviewed-by: Hangbin Liu <liuhangbin@gmail.com>
Acked-by: Nikolay Aleksandrov <razor@blackwall.org>
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
| -rw-r--r-- | ip/iplink_bridge.c | 19 | ||||
| -rw-r--r-- | man/man8/ip-link.8.in | 14 |
2 files changed, 33 insertions, 0 deletions
diff --git a/ip/iplink_bridge.c b/ip/iplink_bridge.c index 6b70ffbb..f01ffe15 100644 --- a/ip/iplink_bridge.c +++ b/ip/iplink_bridge.c @@ -30,6 +30,7 @@ static void print_explain(FILE *f) " [ max_age MAX_AGE ]\n" " [ ageing_time AGEING_TIME ]\n" " [ stp_state STP_STATE ]\n" + " [ mst_enabled MST_ENABLED ]\n" " [ priority PRIORITY ]\n" " [ group_fwd_mask MASK ]\n" " [ group_address ADDRESS ]\n" @@ -169,6 +170,18 @@ static int bridge_parse_opt(struct link_util *lu, int argc, char **argv, bm.optval |= no_ll_learn_bit; else bm.optval &= ~no_ll_learn_bit; + } else if (strcmp(*argv, "mst_enabled") == 0) { + __u32 mst_bit = 1 << BR_BOOLOPT_MST_ENABLE; + __u8 mst_enabled; + + NEXT_ARG(); + if (get_u8(&mst_enabled, *argv, 0)) + invarg("invalid mst_enabled", *argv); + bm.optmask |= mst_bit; + if (mst_enabled) + bm.optval |= mst_bit; + else + bm.optval &= ~mst_bit; } else if (strcmp(*argv, "fdb_max_learned") == 0) { __u32 fdb_max_learned; @@ -609,6 +622,7 @@ static void bridge_print_opt(struct link_util *lu, FILE *f, struct rtattr *tb[]) if (tb[IFLA_BR_MULTI_BOOLOPT]) { __u32 mcvl_bit = 1 << BR_BOOLOPT_MCAST_VLAN_SNOOPING; __u32 no_ll_learn_bit = 1 << BR_BOOLOPT_NO_LL_LEARN; + __u32 mst_bit = 1 << BR_BOOLOPT_MST_ENABLE; struct br_boolopt_multi *bm; bm = RTA_DATA(tb[IFLA_BR_MULTI_BOOLOPT]); @@ -622,6 +636,11 @@ static void bridge_print_opt(struct link_util *lu, FILE *f, struct rtattr *tb[]) "mcast_vlan_snooping", "mcast_vlan_snooping %u ", !!(bm->optval & mcvl_bit)); + if (bm->optmask & mst_bit) + print_uint(PRINT_ANY, + "mst_enabled", + "mst_enabled %u ", + !!(bm->optval & mst_bit)); } if (tb[IFLA_BR_MCAST_ROUTER]) diff --git a/man/man8/ip-link.8.in b/man/man8/ip-link.8.in index c1984158..eabca490 100644 --- a/man/man8/ip-link.8.in +++ b/man/man8/ip-link.8.in @@ -1685,6 +1685,8 @@ the following additional arguments are supported: ] [ .BI stp_state " STP_STATE " ] [ +.BI mst_enabled " MST_ENABLED " +] [ .BI priority " PRIORITY " ] [ .BI no_linklocal_learn " NO_LINKLOCAL_LEARN " @@ -1788,6 +1790,18 @@ or off .RI ( STP_STATE " == 0). " for this bridge. +.BI mst_enabled " MST_ENABLED " +- turn multiple spanning tree (MST) support on +.RI ( MST_ENABLED " > 0) " +or off +.RI ( MST_ENABLED " == 0). " +When enabled, sets of VLANs can be associated with multiple spanning +tree instances (MSTIs), and STP states for each port can be controlled +on a per-MSTI basis. Note: no implementation of the MSTP protocol is +provided, only the primitives needed to implement it. To avoid +interfering with the legacy per-VLAN STP states, this setting can only +be changed when no bridge VLANs are configured. + .BI priority " PRIORITY " - set this bridge's spanning tree priority, used during STP root bridge election. |