Would like your assistance plz regarding below
How to aggregagate multiple OC-1 or OC-3 ?
In Juniper, this can be done using "aggregate sonet" similar to Etherchannel but for sonet interfaces
I wonder If this can be done at Cisco
Thing that came to my mind is to use ppp multilink however what I know it is used only for E1/T1 interfaces .. not sure If it can be done for OC-x interfaces
What platform and OS are you inquiring about? I wasn't aware that any of Cisco's routing platforms offered OC-1 interfaces. They are in the SONET/SDH world but there circuit aggregation usually means entirely different things than what you seem to be asking about.
You are correct that MLPPP is only for T-1/E-1 interfaces. Reference.
This looks to be a form of Virtual Concatenation (VCAT), that is available on most of the 15454 data cards.
Background from Juniper website:
" The JUNOS software enables link aggregation of SONET/SDH interfaces; this is similar to Ethernet link aggregation, but is not defined in a public standard. The JUNOS software balances traffic across the member links within an aggregated SONET/SDH bundle based on the Layer 3 information carried in the packet. This implementation uses the same load balancing algorithm used for per-packet load balancing.
SONET/SDH aggregation is proprietary to the JUNOS software and might not work with other software."
Thanks Marvin/Tom for your reply .. it was really helpful
So this can not be done on cisco routers as 7600, ASR9000 or CRS , correct ?
You're welcome, Sherif.
Correct - the router platforms you mention do not offer OC-1 interfaces and thus they don't allow one to aggregate OC-1 signals. They each offer OC-3 interfaces but one cannot aggregate them together (AFAIK).
As Tom correctly mentioned, VCAT is commonly available and used on the CISCO ONS 15454 SONET/SDH platforms.
I found below link accidentally ... it seems that IOS XR do offer link bundling but for OC-3/OC-12 ; i.e not OC-1 as you mentioned
But dont know If we can load-balance packets on these links based on mpls labels ??