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Nov 30, 2020 · 2、block端口在CISCO设备上。CISCO交换机上认为标准stp报文是vlan1所在的pvst实例发出的，所以stp block端口只会阻塞vlan1实例（不阻塞整个端口），其他pvst报文正常通过该端口处理并转发，并在其所在vlan内计算收敛，所以这时候，一个环上会存在多个block端口（与端口上vlan实例数相等）

Feb 20, 2014 · Hi, I have a network as shown below. Where, Sw1 is running R-PVST and other switches Sw2,Sw3&Sw4 are aunning MSTP. Sw2 is the IST and CIST root. The issue is, whenever I try to ping from Sw1 to the switches running MSTP, I can't ping without allowing VLAN 1 on Sw1's trunk port. Am I missing someth...

Nov 18, 2021 · Solved: Are RSTP and rapid-pvst the same spanning tree mode? And what about the Meraki RSTP? someone please shed some light on this.

Oct 9, 2006 · Hello all, I am planning on implementing rapid-PVST in a data center switch fabric, as recommended by Cisco. However, I am very curious about MSTP. What exactly are the advantages/disadvantages of running MSTP over PVST? Would MSTP be an acceptable solution in a high availability environment suc...

Sep 18, 2017 · so I am trying to wrap my head around the finer points of spanning tree. I understand that PVST is the cisco-proprietary method of implementing 802.1d on multiple vlans and by extension RPVST is the cisco proprietary method of implenting 802.1w on

Mar 9, 2012 · Two comments, though. PVST or RPVST is not just a mode of running STP or RSTP. PVST and RPVST also includes its own BPDUs carried across trunk ports which use a slightly extended format when compared to IEEE-compliant BPDUs. (R)PVST also includes standalone algorithms to deal with inconsistency issues in case of native VLAN mismatches.

Jun 7, 2010 · Everyone I was hoping we could start some discussion with the differences of the following protocols for spanning-tree. I really started to get confused after I am just now learning STP. I do understand that these allow for faster convergence. However - why do they all have to exist? What was wro...

Jun 13, 2007 · We have Catalyst 6500s at our core / distribution layer, and I would like to convert them from PVST to RPVST. However, we still have some 3500XLs at the access layer which will not be retired until next year. I see from the document that RSTP (802.1W) and RPVST are not supported on the 2900XL and 35...

Nov 9, 2024 · I have a core switch 4506 model running on PVST and new cisco switch 3850 model which I have to connect to that core switch through trunk line which is running on RPVST mode. Will there be any issue or problem connecting both since both are different STP modes?