184
C
HAPTER
13: MSTP C
ONFIGURATION
C
OMMANDS
stp instance root
primary
Syntax
stp
[
instance
instance-id
]
root primary
[
bridge-diameter
bridgenum
[
hello-time centi-senconds
] ]
undo stp
[
instance
instance-id
]
root
View
System view
Parameter
instance-id
: Specifies the spanning tree instance ID, ranging from 0 to 48. Specify
it as 0 to configure the root bridge of CIST.
root primary
: Configures the current switch as the primary root of the specified
MSTI.
bridge-diameter
bridgenum
: Specifies the network diameter of the spanning
tree, ranging from 2 to 7.
hello-time
centi-senconds
: Specifies the Hello Time of the spanning tree, which is
in the range from 100 to 1000 and measured in centiseconds.
Description
Use the
stp root primary
command to configure the current switch as the
primary root of the specified MSTI.
Use the
undo stp root
command to cancel the current switch for the primary root
of the designated MSTI.
If you execute these commands without using the
instance
instance-id
option,
your configuration takes effect only on the CIST instance.
When you set the
instance-id
parameter to 0, its following parameter setting takes
effect.
By default, the switch does not server as a root bridge.
You can specify one root bridge for each MSTI regardless of the switch priority.
When setting a root bridge, you can use this command to specify the switching
network diameter and determine the three time parameters (Hello time, Forward
Delay and Max Age). Because the switch calculates inaccurate Hello time value,
you can specify the switching network diameter and the Hello Time for the root
bridge, and thus determine other two parameter values for the root bridge. In
general, you are recommended to determine the other two time parameter values
by setting the network diameter.
c
CAUTION:
In a switching network, you can configure only one root bridge for
each MSTI and one or more secondary switches. Do not configure more than one
root bridge for an MSTI at the same time. Otherwise, the calculation result will be
unpredictable.
Summary of Contents for Switch 8807
Page 30: ......
Page 68: ...66 CHAPTER 2 COMMANDS USED TO LOG IN TO SWITCH ...
Page 78: ...76 CHAPTER 3 CONFIGURATION FILE MANAGEMENT COMMANDS ...
Page 96: ...94 CHAPTER 5 SUPER VLAN CONFIGURATION COMMANDS ...
Page 122: ...120 CHAPTER 8 IP PERFORMANCE CONFIGURATION COMMANDS ...
Page 130: ...128 CHAPTER 9 GARP GVRP CONFIGURATION COMMANDS ...
Page 162: ...160 CHAPTER 11 ETHERNET LINK AGGREGATION CONFIGURATION COMMANDS ...
Page 212: ...210 CHAPTER 13 MSTP CONFIGURATION COMMANDS ...
Page 234: ...232 CHAPTER 16 ACL COMMANDS ...
Page 282: ...280 CHAPTER 18 ACL CONTROL COMMANDS TO CONTROL LOGIN USERS ...
Page 293: ......
Page 294: ...292 CHAPTER 19 VLAN ACL CONFIGURATION COMMANDS ...
Page 310: ...308 CHAPTER 20 802 1X CONFIGURATION COMMANDS ...
Page 370: ...368 CHAPTER 21 AAA AND RADIUS HWTACACS PROTOCOL CONFIGURATION COMMANDS ...
Page 398: ...396 CHAPTER 23 STATIC ROUTE CONFIGURATION COMMANDS ...
Page 462: ...460 CHAPTER 25 OSPF CONFIGURATION COMMANDS ...
Page 498: ...496 CHAPTER 26 INTEGRATED IS IS CONFIGURATION COMMANDS ...
Page 548: ...546 CHAPTER 27 BGP CONFIGURATION COMMANDS ...
Page 570: ...568 CHAPTER 30 RECURSIVE ROUTING CONFIGURATION ...
Page 584: ...582 CHAPTER 32 MULTICAST VLAN CONFIGURATION COMMANDS ...
Page 600: ...598 CHAPTER 33 MULTICAST COMMON CONFIGURATION COMMANDS ...
Page 604: ...602 CHAPTER 34 STATIC MULTICAST MAC ADDRESS CONFIGURATION COMMAND ...
Page 656: ...654 CHAPTER 37 MSDP CONFIGURATION COMMANDS ...
Page 682: ...680 CHAPTER 38 MBGP MULTICAST EXTENSION CONFIGURATION COMMANDS ...
Page 762: ...760 CHAPTER 40 BGP MPLS VPN CONFIGURATION COMMANDS ...
Page 808: ...806 CHAPTER 44 HA CONFIGURATION COMMANDS_HA_CONFIGURATION ...
Page 820: ...818 CHAPTER 45 ARP CONFIGURATION COMMANDS ...
Page 824: ...822 CHAPTER 46 ARP TABLE SIZE CONFIGURATION COMMANDS max arp entry config of slot 13 8192 ...
Page 862: ...860 CHAPTER 47 DHCP CONFIGURATION COMMANDS ...
Page 870: ...868 CHAPTER 48 DNS CONFIGURATION COMMANDS ...
Page 972: ...970 CHAPTER 56 SSH TERMINAL SERVICE CONFIGURATION COMMANDS ...
Page 982: ...980 CHAPTER 57 FILE SYSTEM MANAGEMENT COMMANDS ...
Page 1026: ...1024 CHAPTER 60 INFORMATION CENTER ...
Page 1046: ...1044 CHAPTER 63 PORT PACKET STATISTICS COMMANDS ...
Page 1051: ...Ethernet Port Detection Configuration Commands 1049 ...
Page 1052: ...1050 CHAPTER 64 PORT LOOPBACK DETECTION COMMANDS ...
Page 1053: ...Ethernet Port Detection Configuration Commands 1051 ...
Page 1054: ...1052 CHAPTER 64 PORT LOOPBACK DETECTION COMMANDS ...
Page 1055: ......
Page 1056: ...1054 CHAPTER 64 PORT LOOPBACK DETECTION COMMANDS ...
Page 1057: ......
Page 1058: ...1056 CHAPTER 64 PORT LOOPBACK DETECTION COMMANDS ...
Page 1059: ...Ethernet Port Detection Configuration Commands 1057 ...
Page 1060: ...1058 CHAPTER 64 PORT LOOPBACK DETECTION COMMANDS ...
Page 1061: ......
Page 1062: ...1060 CHAPTER 64 PORT LOOPBACK DETECTION COMMANDS ...
Page 1063: ...Ethernet Port Detection Configuration Commands 1061 ...
Page 1064: ...1062 CHAPTER 64 PORT LOOPBACK DETECTION COMMANDS ...
Page 1065: ......
Page 1066: ...1064 CHAPTER 64 PORT LOOPBACK DETECTION COMMANDS ...
Page 1090: ...1088 CHAPTER 66 NQA CONFIGURATION COMMANDS ...