https://community.extremenetworks.com/t5/extremeswitching-ers/ers4800-spbm-dropped-frames/m-p/98570#M386 <P>Recently converted a link between an ERS4900 and ERS4800 to ISIS/SPBM. We began experiencing a lot of dropped packets. We had no issues withe the untagged PVID VLANs, but the tagged VLANs (voice VLAN) would drop about 50%. Jumbo frames are enabled. After converting back to 802.1q, packets no longer dropped.</P> Fri, 22 Dec 2023 20:26:04 GMT bfaltys24 2023-12-22T20:26:04Z https://community.extremenetworks.com/t5/extremeswitching-ers/ers4800-spbm-dropped-frames/m-p/98570#M386 <P>Recently converted a link between an ERS4900 and ERS4800 to ISIS/SPBM. We began experiencing a lot of dropped packets. We had no issues withe the untagged PVID VLANs, but the tagged VLANs (voice VLAN) would drop about 50%. Jumbo frames are enabled. After converting back to 802.1q, packets no longer dropped.</P> Fri, 22 Dec 2023 20:26:04 GMT https://community.extremenetworks.com/t5/extremeswitching-ers/ers4800-spbm-dropped-frames/m-p/98570#M386 bfaltys24 2023-12-22T20:26:04Z