交换机端口使用量

[H3C-GigabitEthernet1/0/7]quit
[H3C]quit
<H3C>dis int
<H3C>dis interface g1/0/7
 GigabitEthernet1/0/7 current state: UP
 IP Packet Frame Type: PKTFMT_ETHNT_2, Hardware Address: 74ea-c812-4e42
 Description: GigabitEthernet1/0/7 Interface
 Loopback is not set
 Media type is twisted pair, Port hardware type is 1000_BASE_T
 1000Mbps-speed mode, full-duplex mode
 Link speed type is autonegotiation, link duplex type is autonegotiation
 Flow-control is not enabled
 The Maximum Frame Length is 10240
 Broadcast MAX-ratio: 100%
 Unicast MAX-ratio: 100%
 Multicast MAX-ratio: 100%
 PVID: 30
 Mdi type: auto
 Port link-type: access
  Tagged   VLAN ID : none
  Untagged VLAN ID : 30
 Port priority: 0
Last clearing of counters:  Never
 Peak value of input: 44332 bytes/sec, at 2000-06-21 09:32:06
 Peak value of output: 25677071 bytes/sec, at 2000-06-21 09:35:26
 Last 300 seconds input:  1 packets/sec 195 bytes/sec 0%
 Last 300 seconds output:  7 packets/sec 1371 bytes/sec 0%
 Input (total):  2742182 packets, 323002468 bytes
         1934570 unicasts, 137943 broadcasts, 54316 multicasts, 615353 pauses
 Input (normal):  2742182 packets, 323002468 bytes
         1934570 unicasts, 137943 broadcasts, 54316 multicasts, 615353 pauses
 Input:  0 input errors, 0 runts, 0 giants, - throttles
         0 CRC, 0 frame, 0 overruns, 0 aborts
         - ignored, - parity errors
 Output (total): 928759270 packets, 71930865068 bytes
         3426872 unicasts, 790398835 broadcasts, 134933563 multicasts, 0 pauses
 Output (normal): 928759270 packets, 71930865068 bytes
         3426872 unicasts, 790398835 broadcasts, 134933563 multicasts, 0 pauses
 Output: 0 output errors, - underruns, - buffer failures
         0 aborts, 0 deferred, 0 collisions, 0 late collisions
         - lost carrier, - no carrier
想问一下，如何看出端口目前使用率，如何看出来的或者如何计算的。怕交换机的收发数据包超出端口的极限。小弟不懂，不知道如何看。