參數(shù)資料
型號: ZL50418
廠商: Zarlink Semiconductor Inc.
英文描述: Managed 16-Port 10/100 M + 2-Port 1 G Ethernet Switch
中文描述: 管理16端口10/100平方米端口1個G以太網(wǎng)交換機
文件頁數(shù): 53/163頁
文件大?。?/td> 2122K
代理商: ZL50418
ZL50418
Data Sheet
53
Zarlink Semiconductor Inc.
13.4.1.10 Collisions
Counts number of collision events detected.
Only a best estimate since collisions can only be detected while in transmit mode, but not while in receive mode.
13.4.1.11 Packet Count for Different Size Groups
Six different size groups – one counter for each:
Pkts64Octets for any packet with size = 64 bytes
Pkts65to127Octets for any packet with size from 65 bytes to 127 bytes
Pkts128to255Octets for any packet with size from 128 bytes to 255 bytes
Pkts256to511Octets for any packet with size from 256 bytes to 511 bytes
Pkts512to1023Octets for any packet with size from 512 bytes to 1023 bytes
Pkts1024to1518Octets for any packet with size from 1024 bytes to 1518 bytes
Counts both good and bad packets.
13.5 Miscellaneous Counters
In addition to the statistics groups defined in previous sections, the ZL50418 has other statistics counters for its own
purposes. We have two counters for flow control – one counting the number of flow control frames received and
another counting the number of flow control frames sent. We also have two counters, one for unicast frames sent
and one for non-unicast frames sent. A broadcast or multicast frame qualifies as non-unicast. Furthermore, we
have a counter called “frame send fail.” This keeps track of FIFO under-runs, late collisions, and collisions that have
occurred 16 times.
Frame size:
any size
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