我对两个 Cisco 设备之间的隧道接口上的带宽设置有些困惑。

在每一端，我都有 Cisco 路由器，有 10 个接口连接到我的供应商。我有一条隧道将两个站点连接在一起。然而，带宽声明似乎并没有增加。我的 Tx/Rx 看起来已经用完了。但是，输入/输出计数器上的流量与带宽应允许的情况不同。

我真的在隧道中窒息而没有使用我的全部接口带宽吗？

路由器 1

    Tunnel45 is up, line protocol is up 
      Hardware is Tunnel
      Internet address is z.z.z.z
      MTU 17868 bytes, BW 100 Kbit/sec, DLY 50000 usec, 
         reliability 255/255, txload 255/255, rxload 255/255
      Encapsulation TUNNEL, loopback not set
      Keepalive set (10 sec), retries 3
      Tunnel source x.x.x.x (TenGigabitEthernet3/4), destination y.y.y.y
       Tunnel Subblocks:
          src-track:
             Tunnel45 source tracking subblock associated with TenGigabitEthernet3/4
              Set of tunnels with source TenGigabitEthernet3/4, 11 members (includes iterators), on interface <OK>
      Tunnel protocol/transport GRE/IP
        Key disabled, sequencing disabled
        Checksumming of packets disabled
      Tunnel TTL 255, Fast tunneling enabled
      Tunnel transport MTU 9078 bytes
      Tunnel transmit bandwidth 8000 (kbps)
      Tunnel receive bandwidth 8000 (kbps)
      30 second input rate 47213000 bits/sec, 6452 packets/sec
      30 second output rate 85312000 bits/sec, 9380 packets/sec

    interface Tunnel45
     ip address z.z.z.z
     load-interval 30
     keepalive 10 3
     tunnel source TenGigabitEthernet3/4
     tunnel destination x.x.x.x

路由器 2

    Tunnel45 is up, line protocol is up 
      Hardware is Tunnel
      Internet address is z.z.z.z
      MTU 9976 bytes, BW 100 Kbit/sec, DLY 50000 usec, 
         reliability 255/255, txload 255/255, rxload 255/255
      Encapsulation TUNNEL, loopback not set
      Keepalive set (10 sec), retries 3
      Tunnel linestate evaluation up
      Tunnel source x.x.x.x (TenGigabitEthernet0/0/4), destination y.y.y.y
       Tunnel Subblocks:
          src-track:
             Tunnel45 source tracking subblock associated with TenGigabitEthernet0/0/4
              Set of tunnels with source TenGigabitEthernet0/0/4, 2 members (includes iterators), on interface <OK>
      Tunnel protocol/transport GRE/IP
        Key disabled, sequencing disabled
        Checksumming of packets disabled
      Tunnel TTL 255, Fast tunneling enabled
      Tunnel transport MTU 9078 bytes
      Tunnel transmit bandwidth 2000000 (kbps)
      Tunnel receive bandwidth 2000000 (kbps)
      30 second input rate 49418000 bits/sec, 5955 packets/sec
      30 second output rate 33804000 bits/sec, 4266 packets/sec

     interface Tunnel45
     ip address z.z.z.z
     load-interval 30
     keepalive 10 3
     tunnel source TenGigabitEthernet0/0/4
     tunnel destination y.y.y.y
     tunnel bandwidth transmit 2000000
     tunnel bandwidth receive 2000000
    end