HP 到 Cisco 生成树根摆动

Tim*_*ham 9 cisco stp spanning-tree cisco-catalyst hp-procurve

根据最近的一个问题,我最近将 HP (2x 2900) 和 Cisco (1x 3750) 硬件配置为使用 MSTP 实现互操作性。在我将更改应用于第三个设备(下面的 HP 交换机 1)之前,我认为这是有效的,此时生成树根开始摆动,导致我的两个 HP 交换机之间出现性能问题(5% 的数据包丢失)。我不知道为什么。

HP 交换机 1 A4 连接到 Cisco 1/0/1。HP 交换机 2 B2 连接到 Cisco 2/0/1。HP Switch 1 A2 连接到 HP Switch 2 A1。我更喜欢 Cisco 堆栈作为根。

编辑:


在 HP 交换机 2 中有一个特定的行 - 'spanning-tree 1 path-cost 500000' 我没有添加并且已经存在。我不确定它是否会产生我所描述的那种影响。我更像是一个安全和监控人员,然后是网络。


编辑2:


我开始相信问题在于我在 Cisco 上的 MST 0 实例的值仍然是默认的 32768。我绘制了一个图表: 生成树 MAC 关联 这是基于我能为 STP 找到的每个 show 命令。我会在下班后进行此更改,看看是否有帮助。


思科 3750 配置:

version 12.2

spanning-tree mode mst
spanning-tree extend system-id
spanning-tree mst configuration
 name mstp
 revision 1
 instance 1 vlan 1, 40, 70, 100, 250
spanning-tree mst 1 priority 0
vlan internal allocation policy ascending

interface TenGigabitEthernet1/1/1
 switchport trunk encapsulation dot1q
 switchport mode trunk
!
interface TenGigabitEthernet2/1/1
 switchport trunk encapsulation dot1q
 switchport mode trunk
!
interface Vlan1
 no ip address
!
interface Vlan100
 ip address 192.168.100.253 255.255.255.0
!
Run Code Online (Sandbox Code Playgroud)

Cisco 3750 显示生成树:

show spanning-tree

MST0
  Spanning tree enabled protocol mstp
  Root ID    Priority    32768
             Address     0004.ea84.5f80
             Cost        200000
             Port        53 (TenGigabitEthernet1/1/1)
             Hello Time   2 sec  Max Age 20 sec  Forward Delay 15 sec

  Bridge ID  Priority    32768  (priority 32768 sys-id-ext 0)
             Address     a44c.11a6.7c80
             Hello Time   2 sec  Max Age 20 sec  Forward Delay 15 sec

Interface           Role Sts Cost      Prio.Nbr Type
------------------- ---- --- --------- -------- --------------------------------
Te1/1/1             Root FWD 2000      128.53   P2p


MST1
  Spanning tree enabled protocol mstp
  Root ID    Priority    1
             Address     a44c.11a6.7c80
             This bridge is the root
             Hello Time   2 sec  Max Age 20 sec  Forward Delay 15 sec

  Bridge ID  Priority    1      (priority 0 sys-id-ext 1)
             Address     a44c.11a6.7c80
             Hello Time   2 sec  Max Age 20 sec  Forward Delay 15 sec

Interface           Role Sts Cost      Prio.Nbr Type
------------------- ---- --- --------- -------- --------------------------------
Te1/1/1             Desg FWD 2000      128.53   P2p
Run Code Online (Sandbox Code Playgroud)

Cisco 3750 显示日志记录:

%LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan1, changed state to down
%LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan100, changed state to down
%LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan1, changed state to up
%LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan100, changed state to up
%LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan1, changed state to down
%LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan1, changed state to up
Run Code Online (Sandbox Code Playgroud)

惠普交换机 1:

; J9049A Configuration Editor; Created on release #T.13.71
vlan 1
   name "DEFAULT_VLAN"
   untagged 1-8,10,13-16,18-23,A1-A4
   ip address 100.100.100.17 255.255.255.0
   no untagged 9,11-12,17,24
   exit
vlan 100
   name "192.168.100"
   untagged 9,11-12,17,24
   tagged 1-8,10,13-16,18-23,A1-A4
   no ip address
   exit
vlan 21
   name "Users_2"
   tagged 1,A1-A4
   no ip address
   exit
vlan 40
   name "Cafe"
   tagged 1,4,7,A1-A4
   no ip address
   exit
vlan 250
   name "Firewall"
   tagged 1,4,7,A1-A4
   no ip address
   exit
vlan 70
   name "DMZ"
   tagged 1,4,7-8,13,A1-A4
   no ip address
   exit
spanning-tree
spanning-tree config-name "mstp"
spanning-tree config-revision 1
spanning-tree instance 1 vlan 1 40 70 100 250
password manager
password operator
Run Code Online (Sandbox Code Playgroud)

HP Switch 1 显示生成树:

 show spanning-tree

 Multiple Spanning Tree (MST) Information

  STP Enabled   : Yes
  Force Version : MSTP-operation
  IST Mapped VLANs : 2-39,41-69,71-99,101-249,251-4094
  Switch MAC Address : 0021f7-126580
  Switch Priority    : 32768
  Max Age  : 20
  Max Hops : 20
  Forward Delay : 15

  Topology Change Count  : 363,490
  Time Since Last Change : 14 hours

  CST Root MAC Address : 0004ea-845f80
  CST Root Priority    : 32768
  CST Root Path Cost   : 200000
  CST Root Port        : 1

  IST Regional Root MAC Address : 0021f7-126580
  IST Regional Root Priority    : 32768
  IST Regional Root Path Cost   : 0
  IST Remaining Hops            : 20

  Root Guard Ports     :
  TCN Guard Ports      :
  BPDU Protected Ports :
  BPDU Filtered Ports  :
  PVST Protected Ports :
  PVST Filtered Ports  :

                  |           Prio            | Designated    Hello
  Port  Type      | Cost      rity State      | Bridge        Time PtP Edge
  ----- --------- + --------- ---- ---------- + ------------- ---- --- ----
  A1              | Auto      128  Disabled   |
  A2    10GbE-CX4 | 2000      128  Forwarding | 0021f7-126580 2    Yes No
  A3    10GbE-CX4 | Auto      128  Disabled   |
  A4    10GbE-SR  | Auto      128  Disabled   |
Run Code Online (Sandbox Code Playgroud)

HP Switch 1 Logging:我删除了日期/时间字段,因为它们不准确(这些交换机上没有配置 NTP)

00839 stp: MSTI 1 Root changed from 0:a44c11-a67c80 to 32768:0021f7-126580
00839 stp: MSTI 1 Root changed from 32768:0021f7-126580 to 0:a44c11-a67c80
00842 stp: MSTI 1 starved for an MSTI Msg Rx on port A4 from 0:a44c11-a67c80
00839 stp: MSTI 1 Root changed from 0:a44c11-a67c80 to 32768:0021f7-126580
00839 stp: MSTI 1 Root changed from 32768:0021f7-126580 to 0:a44c11-a67c80
00839 stp: MSTI 1 Root changed from 0:a44c11-a67c80 to ...
Run Code Online (Sandbox Code Playgroud)

惠普交换机 2 配置:

; J9146A Configuration Editor; Created on release #W.14.49

vlan 1
   name "DEFAULT_VLAN"
   untagged 1,3-17,21-24,A1-A2,B2
   ip address 100.100.100.36 255.255.255.0
   no untagged 2,18-20,B1
   exit
vlan 100
   name "192.168.100"
   untagged 2,18-20
   tagged 1,3-17,21-24,A1-A2,B1-B2
   no ip address
   exit
vlan 21
   name "Users_2"
   tagged 1,A1-A2,B2
   no ip address
   exit
vlan 40
   name "Cafe"
   tagged 1,13-14,16,A1-A2,B2
   no ip address
   exit
vlan 250
   name "Firewall"
   tagged 1,13-14,16,A1-A2,B2
   no ip address
   exit
vlan 70
   name "DMZ"
   tagged 1,13-14,16,A1-A2,B2
   no ip address
   exit
logging 192.168.100.18
spanning-tree
spanning-tree 1 path-cost 500000
spanning-tree config-name "mstp"
spanning-tree config-revision 1
spanning-tree instance 1 vlan 1 40 70 100 250
Run Code Online (Sandbox Code Playgroud)

HP Switch 2 生成树:

show spanning-tree

 Multiple Spanning Tree (MST) Information

  STP Enabled   : Yes
  Force Version : MSTP-operation
  IST Mapped VLANs : 2-39,41-69,71-99,101-249,251-4094
  Switch MAC Address : 0024a8-cd6000
  Switch Priority    : 32768
  Max Age  : 20
  Max Hops : 20
  Forward Delay : 15

  Topology Change Count  : 21,793
  Time Since Last Change : 14 hours

  CST Root MAC Address : 0004ea-845f80
  CST Root Priority    : 32768
  CST Root Path Cost   : 200000
  CST Root Port        : A1

  IST Regional Root MAC Address : 0021f7-126580
  IST Regional Root Priority    : 32768
  IST Regional Root Path Cost   : 2000
  IST Remaining Hops            : 19

  Root Guard Ports     :
  TCN Guard Ports      :
  BPDU Protected Ports :
  BPDU Filtered Ports  :
  PVST Protected Ports :
  PVST Filtered Ports  :

                  |           Prio            | Designated    Hello
  Port  Type      | Cost      rity State      | Bridge        Time PtP Edge
  ----- --------- + --------- ---- ---------- + ------------- ---- --- ----
  A1    10GbE-CX4 | 2000      128  Forwarding | 0021f7-126580 2    Yes No
  A2    10GbE-CX4 | Auto      128  Disabled   |
  B1    SFP+SR    | 2000      128  Forwarding | 0024a8-cd6000 2    Yes No
  B2              | Auto      128  Disabled   |
Run Code Online (Sandbox Code Playgroud)

HP Switch 2 Logging:我删除了日期/时间字段,因为它们不准确(这些交换机上没有配置 NTP)

00839 stp: CST Root changed from 32768:0021f7-126580 to 32768:0004ea-845f80
00839 stp: IST Root changed from 32768:0021f7-126580 to 32768:0024a8-cd6000
00839 stp: CST Root changed from 32768:0004ea-845f80 to 32768:0024a8-cd6000
00839 stp: CST Root changed from 32768:0024a8-cd6000 to 32768:0004ea-845f80
00839 stp: CST Root changed from 32768:0004ea-845f80 to 32768:0024a8-cd6000
00435 ports: port B1 is Blocked by STP
00839 stp: CST Root changed from 32768:0024a8-cd6000 to 32768:0021f7-126580
00839 stp: IST Root changed from 32768:0024a8-cd6000 to 32768:0021f7-126580
00839 stp: CST Root changed from 32768:0021f7-126580 to 32768:0004ea-845f80
Run Code Online (Sandbox Code Playgroud)

Tim*_*ham 3

哇..经过所有研究,结果发现我所缺少的只是将 MST 0 实例值设置为低于默认值。一旦我将其设置为 4096,所有显示生成树配置都开始按预期运行,显示 Cisco Mac 作为根。

GerryEgan 的解决方案将起作用,因为它还会将 MST 0 实例更改为较低的值。然而,我最终希望能够使用两个 10 gig 链路,一个用于 VLAN 1,一个用于 VLAN 100。这一总体设置是根据最终目标制定的。我没有将其包含在问题中,因为它并不真正相关 - 我迫切需要任何解决方案。

总之,为了配置此设置,我使用了:

思科3750

spanning-tree mode mst
spanning-tree extend system-id
spanning-tree mst configuration
 name mstp
 revision 1
 instance 1 vlan 1, 40, 70, 100, 250
spanning-tree mst 1 priority 0
spanning-tree mst 0 priority 4096
Run Code Online (Sandbox Code Playgroud)

惠普交换机

spanning-tree
spanning-tree config-name "mstp"
spanning-tree config-revision 1
spanning-tree instance 1 vlan 1 40 70 100 250
Run Code Online (Sandbox Code Playgroud)