Hi,
RSTP is the way to go, no doubt if STP is needed.
The CORE should be set to be the Root.
The access-switches, just give them priority so it wont try to become master.
The access-ports, configure as edge ports.
Depending on the JunOS version, there isnt always a "all interface" command. One way to work around it is to use apply-groups maybe.
Otherwise, enable it per interface.
Edge switches:
set protocols rstp bridge-priority 60k
set protocols rstp interface ge-0/0/0.0 edge
Trunk port (aka uplink) to Core:
set protocols rstp interface xe-0/0/0 mode point-to-point
Also optional stuff like
set interfaces interface-range User_Edge_Port_Security_Settings member ge-0/0/0
set interfaces interface-range User_Edge_Port_Security_Settings member "ge-0/0/[1-10]"
set interfaces interface-range User_Edge_Port_Security_Settings description "Common parameters for all Edge interfaces"
set ethernet-switching-options secure-access-port interface User_Edge_Port_Security_Settings mac-limit 5
set ethernet-switching-options secure-access-port interface User_Edge_Port_Security_Settings mac-limit action shutdown
set ethernet-switching-options bpdu-block interface User_Edge_Port_Security_Settings
CORE to the access-switch
set protocols rstp bridge-priority 48k
set protocols rstp interface xe-0/0/1 mode point-to-point
Other stuff to handle BUM traffic.
set groups STORM-CTRL interfaces <ge*> unit 0 family ethernet-switching storm-control custom
set groups STORM-CTRL interfaces <xe*> unit 0 family ethernet-switching storm-control custom
set apply-groups STORM-CTRL
set forwarding-options storm-control-profiles custom all bandwidth-percentage 1
Hope it helps on building your network!
//Rob
Original Message:
Sent: 06-20-2022 03:00
From: SAIRAJ POTTIPOCHALA
Subject: Spanning Tree - RSTP
I am designing a network in a collapsed core structure (Access switches connecting to the two cores). I have about 5 different VLANs
Can someone please let me know what the ideal parameters to be configured to use the RSTP for an EX4550 switch are?
Can I not enable RSTP on all interfaces at once, like cisco?
And can someone please let me know what is shared interface mode? (Is it the one I should use for my design)
set protocols rstp interface all mode ?
Possible completions:
point-to-point Interface mode is point-to-point
shared Interface mode is shared
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SAIRAJ POTTIPOCHALA
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