[c-nsp] UBR Questions

[Aaron Gagnier]

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Is there any specific RF plant related reason that you have your
upstream channel-width set at 1.6MHZ wide? (this is why you only have a
max upstream capacity of 2Mbit/sec btw). If not, then you can set it to
3.2MHZ wide for each port to gain another 2Mbit/sec of capacity per
upstream port.

Also, if your plant is _within spec_ you can always go to 16qam for
upstream modulation versus your current qpsk.

| Our cable interface looks like this (if this helps):
|
| interface Cable1/0
|  description Cable Network
|  ip address xxxxxxxxxxxx 255.255.254.0 secondary
|  ip address xxxxxxxxxxxx 255.255.255.192 secondary
|  ip address 10.1.4.1 255.255.254.0
|  ip nbar protocol-discovery
|  service-policy output peer2peer
|  ip route-cache flow
|  cable downstream rate-limit token-bucket
|  cable downstream annex B
|  cable downstream modulation 64qam
|  cable downstream interleave-depth 32
|  cable downstream frequency 573000000
|  cable downstream channel-id 82
|  no cable downstream rf-shutdown
|  cable upstream 0 frequency 29008000
|  cable upstream 0 power-level 0
|  cable upstream 0 channel-width 1600000
|  cable upstream 0 minislot-size 4
|  cable upstream 0 modulation-profile 1
|  cable upstream 0 rate-limit token-bucket
|  cable upstream 0 s160-atp-workaround
|  no cable upstream 0 shutdown
|  cable upstream 1 frequency 29008000
|  cable upstream 1 power-level 0
|  cable upstream 1 channel-width 1600000
|  cable upstream 1 minislot-size 4
|  cable upstream 1 modulation-profile 1
|  cable upstream 1 rate-limit token-bucket
|  cable upstream 1 s160-atp-workaround
|  no cable upstream 1 shutdown
|  cable upstream 2 frequency 29008000
|  cable upstream 2 power-level 0
|  cable upstream 2 channel-width 1600000
|  cable upstream 2 minislot-size 4
|  cable upstream 2 modulation-profile 1
|  cable upstream 2 rate-limit token-bucket
|  cable upstream 2 s160-atp-workaround
|  no cable upstream 2 shutdown
|  cable upstream 3 frequency 29008000
|  cable upstream 3 power-level 4
|  cable upstream 3 channel-width 1600000
|  cable upstream 3 minislot-size 4
|  cable upstream 3 modulation-profile 1
|  cable upstream 3 rate-limit token-bucket
|  cable upstream 3 s160-atp-workaround
|  no cable upstream 3 shutdown
|  cable dhcp-giaddr policy
|


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