整体网络的交换机都是cisco的（核心和接入），生成树是默认的PVST，现在要增加几台H3C的接入交换机，单路直连核心的，请问接入交换机的生成树可以直接使用PVST吗？还有什么配置需要特殊调整吗？

本案例使用S12508与思科3560对接PVST的典型组网配置案例，S12508-1为主根，同时也部署了VRRP，其中S12508-1为VRRP的master，S12508-2为VRRP的backup，为了进一步防止物理环路，因此在S12508与思科3560部署PVST。

S12508版本信息如下：

H3C Comware Platform Software

Comware Software, Version 5.20, Release 1828P05

Copyright (c) 2004-2014 Hangzhou H3C Tech. Co., Ltd. All rights reserved.

H3C S12508 uptime is 57 weeks, 5 days, 7 hours, 43 minutes

Last reboot reason : User reboot

思科3560版本信息如下：

Cisco IOS Software, C3560 Software (C3560-IPSERVICES-M), Version 12.2(35)SE5, RELEASE SOFTWARE (fc1)

Copyright (c) 1986-2007 by Cisco Systems, Inc.

Compiled Thu 19-Jul-07 18:15 by nachen

Image text-base: 0x00003000,> 

ROM: Bootstrap program is C3560 boot loader

BOOTLDR: C3560 Boot Loader (C3560-HBOOT-M) Version 12.2(25r)SEE4, RELEASE SOFTWARE (fc1)

WAI-F7-XZC-1 uptime is 30 weeks, 6 days, 9 hours, 47 minutes

System returned to ROM by power-on

System restarted at 23:07:18 china Sun Oct 20 2019

System image file is "flash:c3560-ipservices-mz.122-35.SE5/c3560-ipservices-mz.122-35.SE5.bin"

cisco WS-C3560G-48TS (PowerPC405) processor (revision F0) with 122880K/8184K bytes of memory.

Processor board ID FOC1442Z4FZ

Last reset from power-on

2 Virtual Ethernet interfaces

52 Gigabit Ethernet interfaces

The password-recovery mechanism is enabled.

512K bytes of flash-simulated non-volatile configuration memory.

Base ethernet MAC Address       : B4:14:89:E7:D1:80

Motherboard assembly number     : 73-10214-06

Power supply part number        : 341-0107-01

Motherboard serial number       : FOC14425UBW

Power supply serial number      : AZS143501S4

Model revision number           : F0

Motherboard revision number     : A0

Model number                    : WS-C3560G-48TS-E

System serial number            : FOC1442Z4FZ

Top Assembly Part Number        : 800-27479-03

Top Assembly Revision Number    : A0

Version ID                      : V05

CLEI Code Number                : COMBG10BRA

Hardware Board Revision Number  : 0x09

Switch   Ports  Model              SW Version              SW Image            

------   -----  -----              ----------              ----------          

*    1   52     WS-C3560G-48TS     12.2(35)SE5             C3560-IPSERVICES-M  

Configuration register is 0xF

S12508-1的MAC如下（使用lldp查看）：

Global LLDP local-information:

  Chassis ID         : 7425-8ade-a600

  System name        : Internet_S12508A

  System description : H3C Comware software. H3C S12508 Product Version S12500-CMW520-R1828P05. Copyright (c) 2004-2014 Hangzhou H3C Tech. Co., Ltd. All rights reserved.

  System capabilities supported : Bridge,Router

  System capabilities enabled   : Bridge,Router

S12508-2的MAC如下（使用lldp查看）：

Global LLDP local-information:

  Chassis ID         : 70f9-6df4-8a00

  System name        : Internet_S12508B

  System description : H3C Comware software. H3C S12508 Product Version S12500-CMW520-R1828P05. Copyright (c) 2004-2014 Hangzhou H3C Tech. Co., Ltd. All rights reserved.

  System capabilities supported : Bridge,Router

  System capabilities enabled   : Bridge,Router

S12508-1配置如下：

stp mode pvst

 stp pathcost-standard dot1d-1998

 stp vlan 1 4 13 16 19 28 37 64 to 65 72 110 to 112 root primary

 stp vlan 120 to 121 131 140 to 141 150 to 151 160 to 161 170 to 171 180 to 181 190 to 191 200 to 201 210 to 211 root primary

 stp vlan 220 to 221 311 to 316 330 to 331 400 411 to 422 root primary

 stp enable

S12508-2配置如下：

stp mode pvst

 stp instance 0 root secondary

 stp pathcost-standard dot1d-1998

 stp vlan 120 to 121 140 to 141 150 to 151 160 to 161 170 to 171 180 to 181 190 to 191 200 to 201 210 to 211 220 to 221 root secondary

 stp vlan 311 to 316 330 to 331 411 to 422 root secondary

 stp enable

思科3560配置如下：

查看S12508-1的STP根信息：

dis stp root

 VLAN  Root Bridge ID        ExtPathCost IntPathCost Root Port

    1  0.7425-8ade-a600      0           0

    4  0.7425-8ade-a600      0           0

   28  0.7425-8ade-a600      0           0

   37  0.7425-8ade-a600      0           0

   64  0.7425-8ade-a600      0           0

   65  0.7425-8ade-a600      0           0

   72  0.7425-8ade-a600      0           0

  110  0.7425-8ade-a600      0           0

  111  0.7425-8ade-a600      0           0

  112  0.7425-8ade-a600      0           0

  120  0.7425-8ade-a600      0           0

  121  0.7425-8ade-a600      0           0

  131  0.7425-8ade-a600      0           0

  140  0.7425-8ade-a600      0           0

  141  0.7425-8ade-a600      0           0

  150  0.7425-8ade-a600      0           0

  151  0.7425-8ade-a600      0           0

  160  0.7425-8ade-a600      0           0

  161  0.7425-8ade-a600      0           0

  170  0.7425-8ade-a600      0           0

  171  0.7425-8ade-a600      0           0

  180  0.7425-8ade-a600      0           0

  181  0.7425-8ade-a600      0           0

  190  0.7425-8ade-a600      0           0

  191  0.7425-8ade-a600      0           0

  200  0.7425-8ade-a600      0           0

  201  0.7425-8ade-a600      0           0

  210  0.7425-8ade-a600      0           0

  211  0.7425-8ade-a600      0           0

  220  0.7425-8ade-a600      0           0

  221  0.7425-8ade-a600      0           0

  311  0.7425-8ade-a600      0           0

  312  0.7425-8ade-a600      0           0

  313  0.7425-8ade-a600      0           0

  314  0.7425-8ade-a600      0           0

  315  0.7425-8ade-a600      0           0

  316  0.7425-8ade-a600      0           0

  330  0.7425-8ade-a600      0           0

  331  0.7425-8ade-a600      0           0

  400  0.7425-8ade-a600      0           0

  411  0.7425-8ade-a600      0           0

  412  0.7425-8ade-a600      0           0

  413  0.7425-8ade-a600      0           0

  414  0.7425-8ade-a600      0           0

  415  0.7425-8ade-a600      0           0

  416  0.7425-8ade-a600      0           0

  417  0.7425-8ade-a600      0           0

  418  0.7425-8ade-a600      0           0

  419  0.7425-8ade-a600      0           0

  420  0.7425-8ade-a600      0           0

  421  0.7425-8ade-a600      0           0

  422  0.7425-8ade-a600      0           0

  555  32768.7425-8ade-a600  0           0

  901  32768.7425-8ade-a600  0           0

  902  32768.7425-8ade-a600  0           0

  998  32768.70f9-6df4-8a00  0           2           Bridge-Aggregation1

  999  32768.7425-8ade-a600  0           0

查看S12508-2的STP根信息：

dis stp root

 VLAN  Root Bridge ID        ExtPathCost IntPathCost Root Port

    1  0.7425-8ade-a600      0           2           Bridge-Aggregation1

    4  0.7425-8ade-a600      0           2           Bridge-Aggregation1

   28  0.7425-8ade-a600      0           2           Bridge-Aggregation1

   37  0.7425-8ade-a600      0           2           Bridge-Aggregation1

   64  0.7425-8ade-a600      0           2           Bridge-Aggregation1

   65  0.7425-8ade-a600      0           2           Bridge-Aggregation1

   72  0.7425-8ade-a600      0           2           Bridge-Aggregation1

  110  0.7425-8ade-a600      0           2           Bridge-Aggregation1

  111  0.7425-8ade-a600      0           2           Bridge-Aggregation1

  112  0.7425-8ade-a600      0           2           Bridge-Aggregation1

  120  0.7425-8ade-a600      0           2           Bridge-Aggregation1

  121  0.7425-8ade-a600      0           2           Bridge-Aggregation1

  140  0.7425-8ade-a600      0           2           Bridge-Aggregation1

  141  0.7425-8ade-a600      0           2           Bridge-Aggregation1

  150  0.7425-8ade-a600      0           2           Bridge-Aggregation1

  151  0.7425-8ade-a600      0           2           Bridge-Aggregation1

  160  0.7425-8ade-a600      0           2           Bridge-Aggregation1

  161  0.7425-8ade-a600      0           2           Bridge-Aggregation1

  170  0.7425-8ade-a600      0           2           Bridge-Aggregation1

  171  0.7425-8ade-a600      0           2           Bridge-Aggregation1

  180  0.7425-8ade-a600      0           2           Bridge-Aggregation1

  181  0.7425-8ade-a600      0           2           Bridge-Aggregation1

  190  0.7425-8ade-a600      0           2           Bridge-Aggregation1

  191  0.7425-8ade-a600      0           2           Bridge-Aggregation1

  200  0.7425-8ade-a600      0           2           Bridge-Aggregation1

  201  0.7425-8ade-a600      0           2           Bridge-Aggregation1

  210  0.7425-8ade-a600      0           2           Bridge-Aggregation1

  211  0.7425-8ade-a600      0           2           Bridge-Aggregation1

  220  0.7425-8ade-a600      0           2           Bridge-Aggregation1

  221  0.7425-8ade-a600      0           2           Bridge-Aggregation1

  311  0.7425-8ade-a600      0           2           Bridge-Aggregation1

  312  0.7425-8ade-a600      0           2           Bridge-Aggregation1

  313  0.7425-8ade-a600      0           2           Bridge-Aggregation1

  314  0.7425-8ade-a600      0           2           Bridge-Aggregation1

  315  0.7425-8ade-a600      0           2           Bridge-Aggregation1

  316  0.7425-8ade-a600      0           2           Bridge-Aggregation1

  330  0.7425-8ade-a600      0           2           Bridge-Aggregation1

  331  0.7425-8ade-a600      0           2           Bridge-Aggregation1

  400  0.7425-8ade-a600      0           2           Bridge-Aggregation1

  411  0.7425-8ade-a600      0           2           Bridge-Aggregation1

  412  0.7425-8ade-a600      0           2           Bridge-Aggregation1

  413  0.7425-8ade-a600      0           2           Bridge-Aggregation1

  414  0.7425-8ade-a600      0           2           Bridge-Aggregation1

  415  0.7425-8ade-a600      0           2           Bridge-Aggregation1

  416  0.7425-8ade-a600      0           2           Bridge-Aggregation1

  417  0.7425-8ade-a600      0           2           Bridge-Aggregation1

  418  0.7425-8ade-a600      0           2           Bridge-Aggregation1

  419  0.7425-8ade-a600      0           2           Bridge-Aggregation1

  420  0.7425-8ade-a600      0           2           Bridge-Aggregation1

  421  0.7425-8ade-a600      0           2           Bridge-Aggregation1

  422  0.7425-8ade-a600      0           2           Bridge-Aggregation1

  555  32768.70f9-6df4-8a00  0           0

  900  32768.70f9-6df4-8a00  0           0

  903  32768.70f9-6df4-8a00  0           0

  998  32768.70f9-6df4-8a00  0           0

查看思科3560的STP根信息：

sh spanning-tree root

                                        Root    Hello Max Fwd

Vlan                   Root ID          Cost    Time  Age Dly  Root Port

---------------- -------------------- --------- ----- --- ---  ------------

VLAN0064            64 7425.8ade.a600         4    2   20  15  Gi0/48          

VLAN0170           170 7425.8ade.a600         4    2   20  15  Gi0/48          

VLAN0400           400 7425.8ade.a600         4    2   20  15  Gi0/48          

查看思科3560 STP端口状态信息：

sh spanning-tree detail active

 VLAN0064 is executing the ieee compatible Spanning Tree protocol

  Bridge Identifier has priority 32768, sysid 64, address b414.89e7.d180

  Configured hello time 2, max age 20, forward delay 15

  Current root has priority 64, address 7425.8ade.a600

  Root port is 48 (GigabitEthernet0/48), cost of root path is 4

  Topology change flag not set, detected flag not set

  Number of topology changes 82 last change occurred 2w1d ago

          from GigabitEthernet0/47

  Times:  hold 1, topology change 35, notification 2

          hello 2, max age 20, forward delay 15

  Timers: hello 0, topology change 0, notification 0, aging 300

 Port 46 (GigabitEthernet0/46) of VLAN0064 is forwarding

   Port path cost 4, Port priority 128, Port Identifier 128.46.

   Designated root has priority 64, address 7425.8ade.a600

   Designated bridge has priority 32832, address b414.89e7.d180

   Designated port id is 128.46, designated path cost 4

   Timers: message age 0, forward delay 0, hold 0

   Number of transitions to forwarding state: 1

   Link type is point-to-point by default

   BPDU: sent 5251132, received 428

 Port 47 (GigabitEthernet0/47) of VLAN0064 is blocking

   Port path cost 4, Port priority 128, Port Identifier 128.47.

   Designated root has priority 64, address 7425.8ade.a600

   Designated bridge has priority 32832, address 70f9.6df4.8a00

   Designated port id is 128.115, designated path cost 2

   Timers: message age 2, forward delay 0, hold 0

   Number of transitions to forwarding state: 13

   Link type is point-to-point by default

   BPDU: sent 1250, received 7696996

 Port 48 (GigabitEthernet0/48) of VLAN0064 is forwarding

   Port path cost 4, Port priority 128, Port Identifier 128.48.

   Designated root has priority 64, address 7425.8ade.a600

   Designated bridge has priority 64, address 7425.8ade.a600

   Designated port id is 128.115, designated path cost 0

   Timers: message age 3, forward delay 0, hold 0

   Number of transitions to forwarding state: 7

   Link type is point-to-point by default

   BPDU: sent 278, received 1624711

 VLAN0170 is executing the ieee compatible Spanning Tree protocol

  Bridge Identifier has priority 32768, sysid 170, address b414.89e7.d180

  Configured hello time 2, max age 20, forward delay 15

  Current root has priority 170, address 7425.8ade.a600

  Root port is 48 (GigabitEthernet0/48), cost of root path is 4

  Topology change flag not set, detected flag not set

  Number of topology changes 5566 last change occurred 16:28:31 ago

          from GigabitEthernet0/46

  Times:  hold 1, topology change 35, notification 2

          hello 2, max age 20, forward delay 15

  Timers: hello 0, topology change 0, notification 0, aging 300

 Port 16 (GigabitEthernet0/16) of VLAN0170 is forwarding

   Port path cost 4, Port priority 128, Port Identifier 128.16.

   Designated root has priority 170, address 7425.8ade.a600

   Designated bridge has priority 32938, address b414.89e7.d180

   Designated port id is 128.16, designated path cost 4

   Timers: message age 0, forward delay 0, hold 0

   Number of transitions to forwarding state: 1

   Link type is point-to-point by default

   BPDU: sent 257292, received 0

 Port 32 (GigabitEthernet0/32) of VLAN0170 is forwarding

   Port path cost 19, Port priority 128, Port Identifier 128.32.

   Designated root has priority 170, address 7425.8ade.a600

   Designated bridge has priority 32938, address b414.89e7.d180

   Designated port id is 128.32, designated path cost 4

   Timers: message age 0, forward delay 0, hold 0

   Number of transitions to forwarding state: 1

   Link type is point-to-point by default

   BPDU: sent 1492843, received 0

 Port 46 (GigabitEthernet0/46) of VLAN0170 is forwarding

   Port path cost 4, Port priority 128, Port Identifier 128.46.

   Designated root has priority 170, address 7425.8ade.a600

   Designated bridge has priority 32938, address b414.89e7.d180

   Designated port id is 128.46, designated path cost 4

   Timers: message age 0, forward delay 0, hold 0

   Number of transitions to forwarding state: 1

   Link type is point-to-point by default

   BPDU: sent 4708774, received 5847

 Port 47 (GigabitEthernet0/47) of VLAN0170 is blocking

   Port path cost 4, Port priority 128, Port Identifier 128.47.

   Designated root has priority 170, address 7425.8ade.a600

   Designated bridge has priority 4266, address 70f9.6df4.8a00

   Designated port id is 128.115, designated path cost 2

   Timers: message age 2, forward delay 0, hold 0

   Number of transitions to forwarding state: 4

   Link type is point-to-point by default

   BPDU: sent 7225, received 6590908

 Port 48 (GigabitEthernet0/48) of VLAN0170 is forwarding

   Port path cost 4, Port priority 128, Port Identifier 128.48.

   Designated root has priority 170, address 7425.8ade.a600

   Designated bridge has priority 170, address 7425.8ade.a600

   Designated port id is 128.115, designated path cost 0

   Timers: message age 1, forward delay 0, hold 0

   Number of transitions to forwarding state: 7

   Link type is point-to-point by default

   BPDU: sent 2182, received 1590312

 VLAN0400 is executing the ieee compatible Spanning Tree protocol

  Bridge Identifier has priority 32768, sysid 400, address b414.89e7.d180

  Configured hello time 2, max age 20, forward delay 15

  Current root has priority 400, address 7425.8ade.a600

  Root port is 48 (GigabitEthernet0/48), cost of root path is 4

  Topology change flag not set, detected flag not set

  Number of topology changes 79 last change occurred 2w1d ago

          from GigabitEthernet0/47

  Times:  hold 1, topology change 35, notification 2

          hello 2, max age 20, forward delay 15

  Timers: hello 0, topology change 0, notification 0, aging 300

 Port 46 (GigabitEthernet0/46) of VLAN0400 is forwarding

   Port path cost 4, Port priority 128, Port Identifier 128.46.

   Designated root has priority 400, address 7425.8ade.a600

   Designated bridge has priority 33168, address b414.89e7.d180

   Designated port id is 128.46, designated path cost 4

   Timers: message age 0, forward delay 0, hold 0

   Number of transitions to forwarding state: 1

   Link type is point-to-point by default

   BPDU: sent 4707169, received 423

 Port 47 (GigabitEthernet0/47) of VLAN0400 is blocking

   Port path cost 4, Port priority 128, Port Identifier 128.47.

   Designated root has priority 400, address 7425.8ade.a600

   Designated bridge has priority 33168, address 70f9.6df4.8a00

   Designated port id is 128.115, designated path cost 2

   Timers: message age 2, forward delay 0, hold 0

   Number of transitions to forwarding state: 10

   Link type is point-to-point by default

   BPDU: sent 1214, received 6602570

 Port 48 (GigabitEthernet0/48) of VLAN0400 is forwarding

   Port path cost 4, Port priority 128, Port Identifier 128.48.

   Designated root has priority 400, address 7425.8ade.a600

   Designated bridge has priority 400, address 7425.8ade.a600

   Designated port id is 128.115, designated path cost 0

   Timers: message age 1, forward delay 0, hold 0

   Number of transitions to forwarding state: 8

   Link type is point-to-point by default

   BPDU: sent 262, received 1601135

至此，S12508与思科3560 PVST对接的典型组网配置案例已完成！