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Modifying Dynamic Profiles with Versioning Disabled
You use dynamic profiles to configure large groups of subscribers. However, after you have configured and applied dynamic profiles, be cautious when modifying any dynamic profiles that are in use by active subscribers on the router if you have not enabled the router to use dynamic profile versioning. This section provides guidelines and procedures for modifying existing profiles and applying them to subscriber interfaces if dynamic profile versioning is not enabled on the router.
When modifying dynamic profiles, keep the following considerations in mind:
- Do not modify a dynamic profile when dynamic profile versioning is disabled and the dynamic profile is in use by active subscribers.
- Modifying a dynamic profile when dynamic profile versioning is disabled and when the dynamic profile is in use by active subscribers can lead to unpredictable behavior.
When a dynamic profile is modified and committed when dynamic profile versioning is not enabled, the router:
- Logs a warning that the profiles are being modified and committed.
- Determines whether the profile is currently being use by any subscriber.
- If the profile is in use by a subscriber, the commit fails and the router logs errors to report the conflict.
Juniper Neworks recommends that you only modify dynamic profiles when you have enabled dynamic profile versioning on the router. However, to properly modify a dynamic profile when dynamic profile versioning is disabled on the router:
- Ensure that no subscribers are using the dynamic profile.
- Create a new dynamic profile with a different name that
contains the desired changes:
Original Profile
profile1 {interfaces {"$junos-interface-ifd-name" {unit "$junos-underlying-interface-unit" {family inet {filter {input "$junos-input-filter";}}}}}}Original DHCP Configuration
forwarding-options {dhcp-relay {traceoptions {flag all;}.......dynamic-profile profile1;........}}New Profile
profile2 {interfaces {"$junos-interface-ifd-name" {unit "$junos-underlying-interface-unit" {family inet {filter {input "$junos-input-filter";output "$junos-output-filter; /* added output filter variable */}}}}}}Modified DHCP Configuration
forwarding-options {dhcp-relay {traceoptions {flag all;}.......dynamic-profile profile2; /* Name changed from profile1 */........}} - Commit the configuration containing the modified profile.
The modified profile is used for any new subscribers that access the router.
