>From SRND
Configuration Recommendation Because the initial reservation will be larger than the actual packet flow, over-provisioning the RSVP and LLQ bandwidth is required to ensure that the desired number of calls can complete. When provisioning the RSVP bandwidth value for N calls, Cisco recommends that the Nth value be the worst-case bandwidth to ensure that the Nth call gets admitted.3-65 Cisco Unified Communications SRND (Based on Cisco Unified Communications Manager 7.x) OL-16394-05 Chapter 3 Network Infrastructure WAN Infrastructure For example: • To provision four G.729 streams: (3 ∗ 24) + 40 = 112 kbps • To provision four G.711 streams: (3 ∗ 80) + 96 = 336 kbps • To provision four 384 kbps video streams (G.729 audio) (3 ∗ (384 - 8) + 384) ∗ 1.07 = 1618 kbps • To provision four 384 kbps video streams (G.711 audio) (3 ∗ (384 - 64) + 384) ∗ 1.07 = 1438 kbps From: ccie_voice-boun...@onlinestudylist.com [mailto:ccie_voice-boun...@onlinestudylist.com] On Behalf Of Angel Perez Sent: Monday, May 31, 2010 9:16 PM To: osl osl Subject: [OSL | CCIE_Voice] ip rsvp bandwith Hi all: For two g729 calls, how much band would you set at ip rsvp bandwith These are the two options: 1: ip rsvp bandwith 64 (40 + 24) or 2: ip rsvp bandwitn 80 (40 + 40) The first one looks find becouse once the call is completed the rsvp bandwith is reduced to 24 and a second call would be possible, but what happens if one call is ringing and in this moment a second call arrives... then the second call will be rejected due insufficient bandwith This is way I would use the second option, and also if two calls are stablished and a third call arrives rsvp will reject the third call (expected) 24+24 + 40 = 88 ; 88 < 80 What do you think? Regards _____ Hotmail: Free, trusted and rich email service. Get it now. <https://signup.live.com/signup.aspx?id=60969>
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