（各品牌的交换机）缺省情况下，设备允许通过的最大长度字节的帧

（各品牌的交换机）缺省情况下，设备允许通过的最大长度字节的帧

浪潮交换机：S6550-48TQ-AC/D
inspur#
inspur#show int gigaethernet 1/1/1
    gigaethernet1/1/1 is UP, administrative status is UP
    Hardware is gigaethernet, MAC address is 9800.7494.6A36
    Switch Port, JUMBOFRAME 12288 bytes
    MAU Type is 1000BASE-T, duplex auto(full), speed auto(1000M)
    Block Vlan: none
    Flow-control Rcv/Snd:off/off
    MDI Admin auto, Oper normal
    EEE is disabled
    TPID is 8100
    Up-start: 2002-04-28,12:57:53.633
    Up-sustained : 00y03m13d23h07m33s306ms
    last 300 sec input rate 4202991 bits/sec,740 packets/sec
    last 300 sec output rate 1624681 bits/sec,391 packets/sec
    input(swc):12005412402 bytes,38613449 unicast,6487992 multicast,83292798 broadcast,0 drop,0 errors
    input(hwc):23399386073460 bytes,19622970432 unicast,269005722 multicast,193834874 broadcast,0 pause
               0 drop,2 crcerr,0 undersize,0 oversize,0 fragments,0 jabbers,0 collisions
    output(swc):1376048081 bytes,2447767 unicast,2543082 multicast,0 broadcast,0 drop,0 errors
    output(hwc):3894211495021 bytes,15577753557 unicast,188176433 multicast,182983633 broadcast,0 pause
                0 error,650 discard,0 abort,0 deferred,0 collisions,0 nocarrier,0 macerr
inspur#

华为交换机：S5700-52P-LI-AC

华为交换机缺省情况下，设备允许最大长度为9216字节的帧通过以太网接口。

<huawei>display int GigabitEthernet 0/0/1
GigabitEthernet0/0/1 current state : DOWN
Line protocol current state : DOWN
Description:
Switch Port, PVID :   25, TPID : 8100(Hex), The Maximum Frame Length is 9216
IP Sending Frames' Format is PKTFMT_ETHNT_2, Hardware address is 688f-8402-cb1b
Current system time: 2023-04-18 15:20:21-05:13
Port Mode: COMMON COPPER
Speed : 1000,   Loopback: NONE
Duplex: FULL,   Negotiation: ENABLE
Mdi   : AUTO,   Flow-control: DISABLE
Last 300 seconds input rate 0 bits/sec, 0 packets/sec
Last 300 seconds output rate 0 bits/sec, 0 packets/sec
Input peak rate 0 bits/sec, Record time: -
Output peak rate 0 bits/sec, Record time: -

Input:  0 packets, 0 bytes
  Unicast:                          0,  Multicast:                           0
  Broadcast:                        0,  Jumbo:                               0
  Discard:                          0,  Pause:                               0

  Total Error:                      0
  CRC:                              0,  Giants:                              0
  Jabbers:                          0,  Fragments:                           0
  Runts:                            0,  DropEvents:                          0
  Alignments:                       0,  Symbols:                             0
  Ignoreds:                         0,  Frames:                              0
                                          
Output:  0 packets, 0 bytes
  Unicast:                          0,  Multicast:                           0
  Broadcast:                        0,  Jumbo:                               0
  Discard:                          0,  Pause:                               0

  Total Error:                      0
  Collisions:                       0,  ExcessiveCollisions:                 0
  Late Collisions:                  0,  Deferreds:                           0
  Buffers Purged:                   0

    Input bandwidth utilization threshold : 90.00%
    Output bandwidth utilization threshold: 90.00%
    Input bandwidth utilization  :    0%
    Output bandwidth utilization :    0%
<huawei>

华三交换机：H3C S5530F-EI-D
<H3C>display int GigabitEthernet 1/0/1
GigabitEthernet1/0/1
Current state: UP
Line protocol state: UP
IP packet frame type: Ethernet II, hardware address: d461-fea9-6da1
Description: To-ZhuhaiFw-9
Bandwidth: 1000000 kbps
Loopback is not set
Media type is optical fiber, Port hardware type is 1000_BASE_SX_SFP
1000Mbps-speed mode, full-duplex mode
Link speed type is force link, link duplex type is force link
Flow-control is not enabled
Maximum frame length: 10000
Allow jumbo frames to pass
Broadcast max-ratio: 100%
Multicast max-ratio: 100%
Unicast max-ratio: 100%
PVID: 1
MDI type: automdix
Port link-type: Trunk
 VLAN Passing:   270, 508
 VLAN permitted: 270, 508
 Trunk port encapsulation: IEEE 802.1q
Port priority: 0
Last link flapping: 3 weeks 3 days 2 hours 16 minutes
Last clearing of counters: Never
 Peak input rate: 36789729 bytes/sec, at 2014-03-04 22:04:18
 Peak output rate: 70283328 bytes/sec, at 2013-09-10 04:24:46
 Last 300 second input: 1972 packets/sec 997563 bytes/sec 0%
 Last 300 second output: 2960 packets/sec 2368042 bytes/sec 1%
 Input (total):  44641152047 packets, 28958231306749 bytes
         44633296056 unicasts, 67482 broadcasts, 7788483 multicasts, 0 pauses
 Input (normal):  44641152021 packets, - bytes
         44633296056 unicasts, 67482 broadcasts, 7788483 multicasts, 0 pauses
 Input:  25 input errors, 0 runts, 0 giants, 0 throttles
         25 CRC, 0 frame, - overruns, 0 aborts
         - ignored, - parity errors
 Output (total): 73593105312 packets, 88201048108173 bytes
         73573323663 unicasts, 895 broadcasts, 19780754 multicasts, 0 pauses
 Output (normal): 73593105312 packets, - bytes
         73573323663 unicasts, 895 broadcasts, 19780754 multicasts, 0 pauses
 Output: 0 output errors, - underruns, - buffer failures
         0 aborts, 0 deferred, 0 collisions, 0 late collisions
         0 lost carrier, - no carrier
<H3C>