Hi:
I have reviewed draft-ietf-pce-questions-04 and had a few comments to bellows :
1. Section 19, second paragraph says:
"
There is a subtle distinction between an NMS and an Active PCE with
LSP delegation. An NMS is in control of the LSPs in the network and
can request that they are set up, modified, or torn down. An Active
PCE can only make suggestions about LSPs that have been delegated to
the PCE by a PCC .
"
Is PCC NMS or LSR headend? If PCC is NMS, it is a little bit confusing to
compare Active PCE with LSP delegation with NMS?
2. Section 20 says:
"
| Stateless | Stateful |
------------------------+-----------+-----------+
Passive | 1 | 2 |
Active delegated LSPs | 3 | 4 |
Active suggest new LSPs | 5 | 6 |
Active instantiate LSPs | 7 | 7 |
"
What’s the difference between delegated LSP and suggested new LSP? What’s the
difference between suggest new LSP and Instantiate LSPs? Is Active Instantiate
LSPs related to PCE initiated LSP?
3. Section 22, last bullet says:
"
The VNTM will need to issue provisioning requests/commands to the
lower layer networks to cause LSPs to be set up to act as TE links
in the higher layer network. A number of potential protocols exist
for this function as described in [I-D.farrkingel-pce-abno-
architecture], but it should be noted that it makes a lot of sense
for this interface to be the same as that used by an Active PCE
when providing paths to the network.
"
Why VNTM should issue provision request? Isn’t it the job of Provision manager?
Or VNTM ask Provision manager to issue provision request?
4. Section 23, 2nd paragraph
s/network note/network node
5. Section 23, 3rd paragraph says:
"
Conversely, a centralized database of resources and LSPs such as
maintained by a Stateful PCE can be enhanced with a time-based
booking system. If the PCE is also Active, then when the time comes
for the LSP to be set up (or later, when it is to be torn down) the
PCE can control the network.
"
It looks this sentence breaks and can not be parsed from “and LSP such as
maintained by a stateful PCE”
It looks “such as” needs to be removed or
s/ and LSPs such as maintained by/such as LSP maintained by
6. Section 23, last paragraph, says:
"
It may also be necessary
to reposition existing or planned LSPs as new bookings arrive.
Furthermore, the booking database that contains both the scheduled
LSPs and their impact on the network resources can become quite
large.
"
Is planned LSP scheduled LSP? If not, tell difference, if yes, make consistent.
Regards!
-Qin
-----邮件原件-----
发件人: Pce [mailto:[email protected]] 代表 Julien Meuric
发送时间: 2014年4月9日 16:23
收件人: [email protected]
主题: [Pce] WG Last Call for draft-ietf-pce-questions-04
Hi all.
This message ignites a PCE WG last call on draft-ietf-pce-questions-04.
It will end on Wednesday, April 23, 11:59 PM (UTC-12).
Thanks,
JP & Julien
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