BlackDiamond 8800 Series Switches, SummitStack, and Summit Family Switches Only

With hardware forwarding, the switch stores addresses in the hardware table to quickly forward packets to their destination.

The switch uses a hash algorithm to decide where to store the addresses in the hardware table. The standard, default hash algorithm works well for most systems; however, for some addresses with certain patterns, the hardware may attempt to store address information in the same section of the hardware. This can cause an overflow of the hardware table even though there is enough room to store addresses.

Error Messages Displayed With ExtremeXOS 11.4 and Earlier

If you experience a full hardware table that affects Layer 2, IP local host, and IP multicast forwarding, you see messages similar to the following in the log:

<Info:HAL.IPv4Adj.Info> : adj 136.159.188.109: IP add error is Table full for new or newly resolved ARP, egress valid

<Info:HAL.IPv4Adj.Info> : adj 136.159.188.109: returned -17 for L3 table bucket 181

<Warn:HAL.IPv4Mc.Warning> : Could not allocate a hardware S,G,V entry (889f4648,effffffa,70) - hardware table resource exceeded (rv=-17).

Error Messages Displayed With ExtremeXOS 11.5 and Later

If you experience a full hardware table that affects Layer 2, IP local host, and IP multicast forwarding, you see messages similar to the following in the log:

<HAL.IPv4Adj.L3TblFull> MSM-A: IPv4 unicast entry not added.  Hardware L3 Table full.

<Card.IPv4Adj.Warning> Slot 4: IPv4 unicast entry not added.  Hardware L3 Table full.

<HAL.IPv4Mc.GrpTblFullEnt> MSM-A: IPv4 multicast entry (10.0.0.1,224.1.1.1,vlan 1) not added.  Hardware Group Table full.

<Card.IPv4Mc.Warning> Slot-4: IPv4 multicast entry not added.  Hardware L3 Table full.

Published March 2020prev | next

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