HP Mellanox SX1018 Mellanox MLNX-OS® Release Notesfor SX1018HP Ethern - Page 10

Table 5 - Ethernet Known Issues (Sheet 2 of 3) Index Category Description Possible Workaround 15. VLAN 16. Spanning Tree 17. IGMP Snooping 18. IGMP Snooping 19. LLDP 20. LLDP 21. ACLs 22. ACLs 23. Modules 24. Modules When working with more than 2000 VLANs and trying to change a port's VLAN membership in modes hybrid/trunk using the command interface 1/x switchport trunk allowed-vlan, the operation may timeout on account of it being too heavy. Thus, the port does not become prop- erly configured as a member of those VLANs. Assuming port 1 is in trunk mode and there are 3000 VLANs created, a good practice would be to achieve membership of port 1 in VLANs 1003000, use the command interface ethernet 1/x switchport trunk allowed-vlan remove 1-100 instead of interface ethernet 1/x switchport trunk allowed-vlan 100-3000. To fix the problem, run the commands interface ethernet 1/x switchport trunk allowedvlan all and interface ethernet 1/x switchport trunk allowedvlan remove 1-100 in succession. Non-standard behavior may occur on third party switch STP functionality when the port moves from Root to Alternate state. The standard Proposal-Agreement sent by MLNX-OS is unanswered which may result in traffic loss of up to 30 seconds. Setting the ip igmp snooping unregistered multicast option to forward-to-mrouterports option reduces the amount of supported VLANs to 250. There is no possibility to have more than one mrouter port on a single VLAN if igmp snooping is disabled for that vlan After enabling igmp snooping on that VLAN, the user needs to add again the mrouter-ports on that VLAN. LLDP notifications are not supported. The mgmt0, mgmt1 IPv6 addresses and the inband management address are not advertised on LLDP TLV(s). A mask of IPv4 ACL rule can contain either 255 or 0 in any of the 4 bytes assembling it. Packets dropped by the switch due to congestion or ACL rules are added to the bad type counter of the matching VLAN interface. When using 5m splitter cable (P/N MC2609125005), wrong data is displayed under transceiver information. Using 1GbE copper modules leads to the port status being constantly reported as active regardless from the actual link state. Mellanox Technologies 10 Mellanox® Technologies Confidential