Да, конечно, пробовал.
Сначало просто на 3100 выставил приоритет 16384 а на 3028ых оставил 32768, сыплет.
Выставил externalcost на 3028 на портах к 3100 равный единице, сыплет.
До этого с длинками не работал.
Не нашел где меняется именно приоритет порта, смотрю
Код:
show stp ports 25-26 instance 0
приоритет порта 128, а как поменять? ни в cli, ни в web не нашел...
3100:
Код:
DGS-3100# show stp ports 2,4
MSTP Port Information
----------------------
Port Index : 1:2,Port STP enabled
External PathCost : Auto/20000,Edge Port : No/No,P2P : Auto/Yes
Port Forward BPDU enabled
Msti Designated Bridge Internal PathCost Prio Status Role
----- ----------------------- ----------------- ---- ---------- ----------
0 16384/00:24:01:30:c4:b7 20000 128 Forwarding Designated
1 16384/00:24:01:30:c4:b7 20000 128 Disabled Disabled
2 16384/00:24:01:30:c4:b7 20000 128 Disabled Disabled
3 16384/00:24:01:30:c4:b7 20000 128 Disabled Disabled
4 16384/00:24:01:30:c4:b7 20000 128 Disabled Disabled
5 16384/00:24:01:30:c4:b7 20000 128 Disabled Disabled
6 16384/00:24:01:30:c4:b7 20000 128 Disabled Disabled
7 16384/00:24:01:30:c4:b7 20000 128 Disabled Disabled
8 16384/00:24:01:30:c4:b7 20000 128 Disabled Disabled
9 16384/00:24:01:30:c4:b7 20000 128 Disabled Disabled
10 16384/00:24:01:30:c4:b7 20000 128 Disabled Disabled
11 16384/00:24:01:30:c4:b7 20000 128 Disabled Disabled
12 16384/00:24:01:30:c4:b7 20000 128 Disabled Disabled
13 16384/00:24:01:30:c4:b7 20000 128 Disabled Disabled
14 16384/00:24:01:30:c4:b7 20000 128 Disabled Disabled
15 16384/00:24:01:30:c4:b7 20000 128 Disabled Disabled
Port Index : 1:4,Port STP enabled
External PathCost : Auto/20000,Edge Port : No/No,P2P : Auto/Yes
Port Forward BPDU enabled
Msti Designated Bridge Internal PathCost Prio Status Role
----- ----------------------- ----------------- ---- ---------- ----------
0 16384/00:24:01:30:c4:b7 20000 128 Forwarding Designated
1 16384/00:24:01:30:c4:b7 20000 128 Disabled Disabled
2 16384/00:24:01:30:c4:b7 20000 128 Disabled Disabled
3 16384/00:24:01:30:c4:b7 20000 128 Disabled Disabled
4 16384/00:24:01:30:c4:b7 20000 128 Disabled Disabled
5 16384/00:24:01:30:c4:b7 20000 128 Disabled Disabled
6 16384/00:24:01:30:c4:b7 20000 128 Disabled Disabled
7 16384/00:24:01:30:c4:b7 20000 128 Disabled Disabled
8 16384/00:24:01:30:c4:b7 20000 128 Disabled Disabled
9 16384/00:24:01:30:c4:b7 20000 128 Disabled Disabled
10 16384/00:24:01:30:c4:b7 20000 128 Disabled Disabled
11 16384/00:24:01:30:c4:b7 20000 128 Disabled Disabled
12 16384/00:24:01:30:c4:b7 20000 128 Disabled Disabled
13 16384/00:24:01:30:c4:b7 20000 128 Disabled Disabled
14 16384/00:24:01:30:c4:b7 20000 128 Disabled Disabled
15 16384/00:24:01:30:c4:b7 20000 128 Disabled Disabled
DGS-3100# show stp
STP Status : Enabled
STP Version : RSTP
Max Age : 20
Hello Time : 2
Forward Delay : 15
Max Hops : 2
Forwarding BPDU : Enabled
Loopback Detection : Enabled
Loopback Detection Interval : 60
DGS-3100# show stp instance_id 0
Instance Type : CIST
Instance Status : Enabled
Instance Priority : 16384
STP Instance Operational Status
-------------------------------
Designated Root Bridge : 16384/00:24:01:30:c4:b7
External Root Cost : 0
Regional Root Bridge : 16384/00:24:01:30:c4:b7
Internal Root Cost : 0
Root Port : 0
Max Age : 20
Forward Delay : 15
Last Topology Change : 27464
Topology Changes Count : 4
3028 - 1 потери до свитча из-за перехлопок:
Код:
DES-3028:4#show stp
Command: show stp
STP Bridge Global Settings
-----------------------------
STP Status : Enabled
STP Version : RSTP
Max Age : 20
Hello Time : 2
Forward Delay : 15
Max Hops : 6
TX Hold Count : 3
Forwarding BPDU : Enabled
Loopback Detection : Enabled
LBD Recover Time : 60
New Root Trap : Enabled
Topology Change Trap : Enabled
DES-3028:4#show stp instance
Command: show stp instance
STP Instance Settings
---------------------------
Instance Type : CIST
Instance Status : Enabled
Instance Priority : 32768(Bridge Priority : 32768, sys ID ext : 0 )
STP Instance Operational Status
--------------------------------
Designated Root Bridge : 16384/00-24-01-30-C4-B7
External Root Cost : 1
Regional Root Bridge : 32768/00-21-91-8C-BA-88
Internal Root Cost : 0
Designated Bridge : 16384/00-24-01-30-C4-B7
Root Port : 25
Max Age : 20
Forward Delay : 15
Last Topology Change : 50
Topology Changes Count : 3187
В момент перехлопки:
Код:
DES-3028:4#show stp instance
Command: show stp instance
STP Instance Settings
---------------------------
Instance Type : CIST
Instance Status : Enabled
Instance Priority : 32768(Bridge Priority : 32768, sys ID ext : 0 )
STP Instance Operational Status
--------------------------------
Designated Root Bridge : 32768/00-21-91-8C-BA-88
External Root Cost : 0
Regional Root Bridge : 32768/00-21-91-8C-BA-88
Internal Root Cost : 0
Designated Bridge : 32768/00-21-91-8C-BA-88
Root Port : None
Max Age : 20
Forward Delay : 15
Last Topology Change : 85
Topology Changes Count : 3187
Код:
DES-3028:4#show stp ports 25-26 instance 0
Command: show stp ports 25-26 instance 0
Port Designated Bridge IntrCost ExtrCost Pri Edge P2P LBD Hello Status Role
---- ------------------ --------- ---------- --- ---- --- --- ----- ------ ----
25 4000/00240130C4B7 *20000 1 128 No Yes Yes 2 FWD ROOT
26 8000/0021918CBA88 *20000 *20000 128 No Yes Yes 2 BLOCK DESG
В момент перехлопки:
Код:
DES-3028:4#show stp ports 25-26 instance 0
Command: show stp ports 25-26 instance 0
Port Designated Bridge IntrCost ExtrCost Pri Edge P2P LBD Hello Status Role
---- ------------------ --------- ---------- --- ---- --- --- ----- ------ ----
25 4000/00240130C4B7 *20000 1 128 No Yes Yes 2 FWD ROOT
26 8000/0021918CBA88 *20000 *20000 128 No Yes Yes 2 BLOCK DESG
3028 - 2 перехлопок нет, потерь тоже нет, почему то не хочет видеть 3100 в качестве рута...???:
Код:
DES-3028:4#show stp
Command: show stp
STP Bridge Global Settings
-----------------------------
STP Status : Enabled
STP Version : RSTP
Max Age : 20
Hello Time : 2
Forward Delay : 15
Max Hops : 6
TX Hold Count : 3
Forwarding BPDU : Enabled
Loopback Detection : Enabled
LBD Recover Time : 60
New Root Trap : Enabled
Topology Change Trap : Enabled
DES-3028:4#show stp instance
Command: show stp instance
STP Instance Settings
---------------------------
Instance Type : CIST
Instance Status : Enabled
Instance Priority : 24576(Bridge Priority : 24576, sys ID ext : 0 )
STP Instance Operational Status
--------------------------------
Designated Root Bridge : 24576/00-21-91-8C-BA-F4
External Root Cost : 0
Regional Root Bridge : 24576/00-21-91-8C-BA-F4
Internal Root Cost : 0
Designated Bridge : 24576/00-21-91-8C-BA-F4
Root Port : None
Max Age : 20
Forward Delay : 15
Last Topology Change : 362
Topology Changes Count : 26
DES-3028:4#show stp ports 25-26 instance 0
Command: show stp ports 25-26 instance 0
Port Designated Bridge IntrCost ExtrCost Pri Edge P2P LBD Hello Status Role
---- ------------------ --------- ---------- --- ---- --- --- ----- ------ ----
25 6000/0021918CBAF4 *20000 1 128 No Yes Yes 2 FWD DESG
26 6000/0021918CBAF4 *20000 *20000 128 No Yes Yes 2 FWD DESG