Добрый день собираемся разворачивать RSTP на кольцах до 8 коммутаторов,
Предварительно собран тестовый стенд.
Схемы выглядит так
Возникла проблема что при разрыва линка между любыми из делинков или ребуте коммутатора
Скорость схождения 40-50 ping пакетов - это очень много учитывая такое малое количество коммутаторов в кольце
Кофиг Cisco
spanning-tree mode rapid-pvst
spanning-tree extend system-id
spanning-tree vlan 1 priority 8192
spanning-tree vlan 2-4094 priority 24576
interface GigabitEthernet0/1
switchport trunk allowed vlan 1,800-802
switchport mode trunk
spanning-tree guard root
!
interface GigabitEthernet0/2
switchport trunk allowed vlan 1,800-802
switchport mode trunk
spanning-tree guard root
Конфиги Делинков 1-но типны:
# VLAN
disable asymmetric_vlan
enable pvid auto_assign
config vlan default delete 1-28
config vlan default advertisement disable
create vlan MGMT800 tag 800 advertisement
config vlan MGMT800 add tagged 25-28
create vlan DHCP tag 801
config vlan DHCP add tagged 25-28
config vlan DHCP add untagged 1-23
create vlan VoIP tag 811 advertisement
config vlan VoIP add tagged 25-28
disable gvrp
# STP
config stp version rstp
config stp maxage 20 maxhops 20 forwarddelay 15 txholdcount 6 fbpdu enable hellotime 2
config stp priority 32768 instance_id 0
config stp mst_config_id name B8:A3:86:F6:83:20 revision_level 0
config stp ports 1-24 externalCost auto edge true p2p auto state disable
config stp mst_ports 1-28 instance_id 0 internalCost auto priority 128
config stp ports 1-24 fbpdu disable
config stp ports 1-24 restricted_role true
config stp ports 1-28 restricted_tcn true
config stp ports 25-28 externalCost auto edge false p2p auto state enable
config stp ports 25-28 fbpdu enable
config stp ports 25-28 restricted_role false
config stp trap new_root enable topo_change enable
enable stp
Dlink des-1228me (ip адреса убраны намеренно):
FTTB-DHCP:5#sh sw
Command: show switch
Device Type : DES-1228/ME Metro Ethernet Switch
MAC Address : B8-A3-86-F6-82-E0
IP Address :
VLAN Name : MGMT800
Subnet Mask :
Default Gateway :
Boot PROM Version : Build 2.00.001
Firmware Version : Build 2.00.007
Hardware Version : B1
Serial Number : PVCM3C1006785
System Name :
System Location :
System Uptime : 0 days, 1 hours, 11 minutes, 45 seconds
System Contact :
Spanning Tree : Enabled
GVRP : Disabled
IGMP Snooping : Enabled
VLAN Trunk : Disabled
802.1X : Disabled
Telnet : Enabled (TCP 23)
Web : Enabled (TCP 80)
RMON : Disabled
SSH : Disabled
CLI Paging : Enabled
Syslog Global State: Disabled
Dual Image : Supported
Password Encryption Status : Disabled
Состояние stp портов на коммутаторах:
1
FTTB-DHCP:5#sh 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 : 20
TX Hold Count : 6
Forwarding BPDU : Enabled
New Root Trap : Enabled
Topology Change Trap : Enabled
FTTB-DHCP:5#sh stp por 25-26
Command: show stp ports 25-26
MSTP Port Information
----------------------
Port Index : 25 , Hello Time: 2 /2 , Port STP Enabled ,
Restricted role : False, Restricted TCN : True
External PathCost : Auto/20000 , Edge Port : False/No , P2P : Auto /Yes
Port Forward BPDU : Enabled
MSTI Designated Bridge Internal PathCost Prio Status Role
----- ------------------ ----------------- ---- ---------- ----------
0 8000/B8A386F68320 20000 128 Forwarding Designated
MSTP Port Information
----------------------
Port Index : 26 , Hello Time: 2 /2 , Port STP Enabled ,
Restricted role : False, Restricted TCN : True
External PathCost : Auto/20000 , Edge Port : False/No , P2P : Auto /Yes
Port Forward BPDU : Enabled
MSTI Designated Bridge Internal PathCost Prio Status Role
----- ------------------ ----------------- ---- ---------- ----------
0 2001/0CD996256C80 20000 128 Forwarding Root
2
FTTB-DHCP:5#sh 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 : 20
TX Hold Count : 6
Forwarding BPDU : Enabled
New Root Trap : Enabled
Topology Change Trap : Enabled
FTTB-DHCP:5#sh stp por 25-26
Command: show stp ports 25-26
MSTP Port Information
----------------------
Port Index : 25 , Hello Time: 2 /2 , Port STP Enabled ,
Restricted role : False, Restricted TCN : True
External PathCost : Auto/20000 , Edge Port : False/No , P2P : Auto /Yes
Port Forward BPDU : Enabled
MSTI Designated Bridge Internal PathCost Prio Status Role
----- ------------------ ----------------- ---- ---------- ----------
0 8000/B8A386F68320 20000 128 Forwarding Designated
MSTP Port Information
----------------------
Port Index : 26 , Hello Time: 2 /2 , Port STP Enabled ,
Restricted role : False, Restricted TCN : True
External PathCost : Auto/20000 , Edge Port : False/No , P2P : Auto /Yes
Port Forward BPDU : Enabled
MSTI Designated Bridge Internal PathCost Prio Status Role
----- ------------------ ----------------- ---- ---------- ----------
0 2001/0CD996256C80 20000 128 Forwarding Root
3
FTTB-DHCP:5#sh 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 : 20
TX Hold Count : 6
Forwarding BPDU : Enabled
New Root Trap : Enabled
Topology Change Trap : Enabled
FTTB-DHCP:5#sh stp por 25-26
Command: show stp ports 25-26
MSTP Port Information
----------------------
Port Index : 25 , Hello Time: 2 /2 , Port STP Enabled ,
Restricted role : False, Restricted TCN : True
External PathCost : Auto/20000 , Edge Port : False/No , P2P : Auto /Yes
Port Forward BPDU : Enabled
MSTI Designated Bridge Internal PathCost Prio Status Role
----- ------------------ ----------------- ---- ---------- ----------
0 2001/0CD996256C80 20000 128 Forwarding Root
MSTP Port Information
----------------------
Port Index : 26 , Hello Time: 2 /2 , Port STP Enabled ,
Restricted role : False, Restricted TCN : True
External PathCost : Auto/20000 , Edge Port : False/No , P2P : Auto /Yes
Port Forward BPDU : Enabled
MSTI Designated Bridge Internal PathCost Prio Status Role
----- ------------------ ----------------- ---- ---------- ----------
0 8000/B8A386F682E0 20000 128 Forwarding Designated
STP instance (общая картина для всех 3х коммутаторов)
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 : 8193 /0C-D9-96-25-6C-80 (мак Cisco)
External Root Cost : 20000
Regional Root Bridge : 32768/B8-A3-86-F6-82-E0 (мак Dlink -2)
Internal Root Cost : 0
Designated Bridge : 8193 /0C-D9-96-25-6C-80
Root Port : 25
Max Age : 20
Forward Delay : 15
Last Topology Change : 1663
Topology Changes Count : 5
C чем может быть связана такая долгая сходимость???
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