Hitachi GR2000 Series Manual do Utilizador descarregar pdf (Página 195)

Troubleshooting

GR2K-GA-0015 7-29

Ver. 07-02

(b) To Check for the Possibility that a Packet is Discarded by the Bandwidth Control

Function of QoS

Step 1. Login to this router.

Step 2. Confirm if any packet is discarded at the input/output interface by the

bandwidth control function of QoS using the show qos ip-flow command.

[Example]

Confirm if a packet has been discarded by the bandwidth control function of

QoS, where the input interface name of the communication failed packet is

tokyo1 and the source IP address of the same packet is 170.10.11.21.

Step 1. Login to this router.

Step 2. Enter the show qos ip-flow detail command:

Step 3. Confirm that the input interface name is <QoS IP List No.> of tokyo1. In the

example described above, <QoS IP List No.>: 1 is applied.

Step 4. Compare the flow conditions confirmed in step 3 with the contents of a

packet that cannot be communicated. Confirm that the operation of <QoS

IP List No.> in which the flow conditions match the contents is not

discarded.

In this example, since the IP address from which a packet is transmitted is

170.10.11.21, it matches <QoS IP List No.>: 1. The operation when the

contract band of <QoS IP List No.>: 1 is violated (packets of 1,000,000 bps

over (drop)) is discarded, so the packet may be discarded by the band

control of an input interface’s QoS function.

of QoS

Step 1. Login to this router.

Step 2. Confirm if any packet is discarded at the input/output interface by the

queue control function of QoS using the show qos queueing command.

[Example]

Confirm if a packet has been discarded by the queue control function of QoS,

where the output interface of the communication failed packet is NIF1 Line No. 3.

Step 1. Login to this router.

Step 2. Enter the show qos queueing nif 1 line 3 input:

1 2 ... 190 191 192 193 194 195 196 197 198 199 200 ... 327 328

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Hitachi GR2000 Series Manual do Utilizador Página 195