Function
This command is used to modify a dynamic bandwidth assignment (DBA) profile.
When the configuration of the DBA profile cannot meet the service requirements,
run this command to modify the DBA profile.
Parameters
| Parameter | Description | Description |
|---|---|---|
| profile-id profile-id | Indicates the DBA profile ID. When you need to modify a DBA profile by specifying the profile ID, use this parameter. | Numeral type. Range: 0-512. |
| profile-name profile-name | Indicates the DBA profile name. When you need to modify a DBA profile by specifying the profile name, use this parameter. | Character string type, a string of 1-33 characters.The characters must be visible and cannot contain a question mark (?). A double quotation mark (") except the outer-layer double quotation mark (") cannot be followed by a space. If the start or end character is a double quotation mark (), the corresponding end or start character must also be a double quotation mark ("). |
Usage Guidelines
By default, the system has ten DBA profiles numbering 0-9. The default DBA
profiles can be queried or modified, but cannot be deleted.
Example
To modify the fixed bandwidth of DBA profile 2 to 2 Mbit/s and the maximum
bandwidth to 10 Mbit/s, do as follows:
huawei(config)#dba-profile modify
{ profile-id<K>|profile-name<K> }:profile-id
{ profile-id<U><0,512> }:2
Command:
dba-profile modify profile-id 2
> Start modifying a DBA-profile:
> The type of the DBA-profile (1~5) [3]: 5
> The fixed bandwidth of the DBA-profile(128~10000000kbps) [0] : 2048
> The assured bandwidth of the DBA-profile(128~10000000kbps) [15360] : 2048
> The maximum bandwidth of the DBA-profile(128~10000000kbps) [30720] : 10240
> The additional bandwidth of the DBA-profile(0:non-assure 1: best-effort) [1]
: 1
> The priority of the DBA-profile(0~3) [1] :2
> The weight of the DBA-profile(1~10000) [100] :200
To modify the fixed bandwidth of DBA profile 12 to 2 Mbit/s and disable the
fixed delay, do as follows: huawei(config)#dba-profile modify
{ profile-id<K>|profile-name<K> }:profile-id
{ profile-id<U><0,512> }:12
Command:
dba-profile modify profile-id 12
> Start modifying a DBA-profile:
> The type of the DBA-profile (1~5) [1]: 1
> The fixed bandwidth of the DBA-profile(128~10000000kbps) [192] : 2048
> The bandwidth compensation of the DBA-profile(0: No 1: Yes) [0] : 0
> The fix delay switch of the DBA-profile(0: No 1: Yes) [1]: 0
System Response
- The system does not display any message after the DBA profile is modified successfully.
- The following table describes the parameters in response to this
command.
Parameter Description The type of the DBA-profile Indicates the DBA profile type. There are five types of DBA profiles:For details about the application scenarios of each type of profiles, see the "Description" of the dba-profile add command.- 1: fixed bandwidth
- 2: assured bandwidth
- 3: assured bandwidth + maximum bandwidth
- 4: maximum bandwidth
- 5: fixed bandwidth + assured bandwidth + maximum bandwidth
The fixed bandwidth of the DBA-profile Indicates the fixed bandwidth of the DBA profile. The fixed bandwidth is reserved for a specified ONU or certain services of the ONU. It cannot be used for other ONUs even when the upstream service stream is not transmitted on the ONU. This type of bandwidth is mainly used for services, such as TDM and VoIP, that have a high QoS requirement. When the DBA profile is of type1 and type5, you can modify the fixed bandwidth. The bandwidth compensation of the DBA-profile Indicates the bandwidth compensation of the DBA profile. The bandwidth compensation refers to that the bandwidth is accelerated during the transmission when the actual bandwidth cannot meet requirements. This parameter can be modified only when the DBA profile is in TYPE1. The fix delay switch of the DBA-profile Indicates the fixed delay function of the DBA profile. It can ensure the minimum jitter of the fixed bandwidth service. After the fixed delay function is enabled, more bandwidth resources will be occupied. This parameter can be modified only when the DBA profile is in TYPE1. The assured bandwidth of the DBA-profile Indicates the assured bandwidth of the DBA profile. The assured bandwidth is the available bandwidth of an ONU when the ONU requires the bandwidth. When the actual service stream does not reach the assured bandwidth, the DBA mechanism of the The device is used to allocate the remaining bandwidth to services of other ONUs. When the DBA profile is of type2, type3 and type5, you can modify the assured bandwidth.
Because of the DBA mechanism that allocates the remaining bandwidth to services of other ONUs, the assured bandwidth has a poorer real-time performance than fixed bandwidth does.The maximum bandwidth of the DBA-profile Indicates the maximum bandwidth of the DBA profile. This type of bandwidth is the maximum bandwidth that can be used by an ONU to meet the ONU bandwidth requirement to the greatest extent. It is used for services such as IPTV and high-speed Internet access service. When the DBA profile is of type3, type4 and type5, you can modify the maximum bandwidth. The additional bandwidth of the DBA-profile Indicates the additional bandwidth type of the DBA profile. Options are as follows:- 0: non-assure
- 1: best-effort
- 2: both
- 3: default
- In privilege mode: non-assure and best-effort
- In diagnosis mode: non-assure, best-effort, both, and default
- When the additional bandwidth type is both or default, they are displayed as best-effort in privilege mode.
The priority of the DBA-profile Indicates the priority of the DBA profile. This parameter can be modified only when the DBA profile is in TYPE4 or when the DBA profile is in TYPE5 and the additional bandwidth type is not non-assure. The weight of the DBA-profile Indicates the weight of the DBA profile. This parameter can be modified only when the DBA profile is in TYPE4 or when the DBA profile is in TYPE5 and the additional bandwidth type is not non-assure. - For more information about the error message that the system displays against a command entered with incorrect syntax, see the "Syntax Check" in Parameter
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