Netgear XCM8806 - 8800 SERIES 6-SLOT CHASSIS SWITCH ユーザーズマニュアル
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Appendix C. Troubleshooting
NETGEAR 8800 User Manual
For more information, see the hardware documentation listed in
Inserting Powered Devices in the PoE Module
To reduce the chances of ports fluctuating between powered and non-powered states, newly
inserted powered devices (PDs) are not powered when the actual delivered power for the
module is within approximately 19 W of the configured inline power budget for that slot.
However, actual aggregate power can be delivered up to the configured inline power budget
for the slot (for example, when delivered power from ports increases or when the configured
inline power budget for the slot is reduced).
inserted powered devices (PDs) are not powered when the actual delivered power for the
module is within approximately 19 W of the configured inline power budget for that slot.
However, actual aggregate power can be delivered up to the configured inline power budget
for the slot (for example, when delivered power from ports increases or when the configured
inline power budget for the slot is reduced).
Modifying the Hardware Table Hash Algorithm
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.
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 XCM8800
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:
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.
Configuring the Hash Algorithm
If you experience a full hardware table, you can configure a different hash algorithm to
distribute the L2 and L3 addresses differently in the hardware table. You must save your
configuration and reboot the switch to modify the hash algorithm used by the hardware table.
distribute the L2 and L3 addresses differently in the hardware table. You must save your
configuration and reboot the switch to modify the hash algorithm used by the hardware table.
Note:
Modify the hardware table hash algorithm only with the guidance of
NETGEAR technical personnel.