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3750 на бгп ?

немного неожиданно потребовалось поставить каталист 3750 на бгп.

сейчас один аплинк, соответственно дефолт и никаких проблем.

но будет еще как минимум два.

вопрос, можно-ли хоть что-то полезного выжать с 3750 ?

много не нада.

хочется что-то типа от каждого аплинка брать тока их сети а основной трафик с кем-то одним

реально ?

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хотелось бы аналогичного, но трафик делить между аплинками...

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все можно и все работает, пока в количество маршрутов не упретесь

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c3750g-12s Держит спокойно аплинк (дефолт), MSK-IX-RS + 3 downlink'а

Количеству маршрутов в tcam подходит к критичскому, но проблем не наблюдаю.

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чем мониторить занятость tcam?

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WS-C3750G-24T

1 дефолт + 4 bulgarian peers + same backups

 

svoge-core#sh platform tcam utilization

CAM Utilization for ASIC# 0                      Max            Used
                                             Masks/Values    Masks/values

Unicast mac addresses:                        400/3200        125/920
IPv4 IGMP groups + multicast routes:          152/1216          7/28
IPv4 unicast directly-connected routes:       400/3200        125/920
IPv4 unicast indirectly-connected routes:    1040/8320        584/4558
IPv4 policy based routing aces:               384/512           1/2
IPv4 qos aces:                                768/768         324/324
IPv4 security aces:                          1024/1024         33/33

Note: Allocation of TCAM entries per feature uses
a complex algorithm. The above information is meant
to provide an abstract view of the current TCAM utilization


svoge-core#sh ip bgp summary
BGP router identifier xxx.xx.xxx.xx, local AS number xxxxx
BGP table version is 139199, main routing table version 139199
4471 network entries using 523107 bytes of memory
8944 path entries using 465088 bytes of memory
2 multipath network entries and 8 multipath paths
4565/553 BGP path/bestpath attribute entries using 639100 bytes of memory
1289 BGP AS-PATH entries using 35810 bytes of memory
4 BGP community entries using 96 bytes of memory
0 BGP route-map cache entries using 0 bytes of memory
0 BGP filter-list cache entries using 0 bytes of memory
BGP using 1663201 total bytes of memory
BGP activity 18054/13583 prefixes, 84069/75125 paths, scan interval 60 secs

Neighbor        V    AS MsgRcvd MsgSent   TblVer  InQ OutQ Up/Down  State/PfxRcd
xxx.xx.xxx.xx   4 xxxxx  58186   48687   139199    0    0 4d22h        4465
xxx.xx.xxx.xx    4 xxxxx  67150   46673   139199    0    0 4d20h        4465
xxx.xx.xxx.xx   4 xxxxx 2587402   68309   139199    0    0 4d20h           1
xxx.xx.xxx.xx   4 xxxxx   40626   65439   139199    0    0 3w5d            1
xxx.xx.xxx.xx  4 xxxxx   39349   43295   139199    0    0 3w5d            1
xxx.xx.xxx.xx   4 xxxxx   47802   43133   139199    0    0 3w5d            1
xxx.xx.xxx.xx   4 xxxxx   39315   43278   139199    0    0 3w5d            1
xxx.xx.xxx.xx  4 xxxxx   47785   43134   139199    0    0 3w5d            1
xxx.xx.xxx.xx   4 xxxxx  39008   42946   139199    0    0 4d20h           1
xxx.xx.xxx.xx  4 xxxxx  47436   42822   139199    0    0 4d20h           1
xxx.xx.xxx.xx  4 xxxxx   38998   44075   139199    0    0 4d20h           1
xxx.xx.xxx.xx  4 xxxxx   47449   42822   139199    0    0 4d20h           1
xxx.xx.xxx.xx   4 xxxxx   20518   40655   139199    0    0 4d20h           0

svoge-core#show platform ip unicast counts
# of HL3U fibs 4532
# of HL3U adjs 18
# of HL3U mpaths 2
# of HL3U covering-fibs 0
# of HL3U fibs with adj failures 0
Fibs of Prefix length 0, with TCAM fails: 0
Fibs of Prefix length 1, with TCAM fails: 0
Fibs of Prefix length 2, with TCAM fails: 0
Fibs of Prefix length 3, with TCAM fails: 0
Fibs of Prefix length 4, with TCAM fails: 0
Fibs of Prefix length 5, with TCAM fails: 0
Fibs of Prefix length 6, with TCAM fails: 0
Fibs of Prefix length 7, with TCAM fails: 0
Fibs of Prefix length 8, with TCAM fails: 0
Fibs of Prefix length 9, with TCAM fails: 0
Fibs of Prefix length 10, with TCAM fails: 0
Fibs of Prefix length 11, with TCAM fails: 0
Fibs of Prefix length 12, with TCAM fails: 0
Fibs of Prefix length 13, with TCAM fails: 0
Fibs of Prefix length 14, with TCAM fails: 0
Fibs of Prefix length 15, with TCAM fails: 0
Fibs of Prefix length 16, with TCAM fails: 0
Fibs of Prefix length 17, with TCAM fails: 0
Fibs of Prefix length 18, with TCAM fails: 0
Fibs of Prefix length 19, with TCAM fails: 1
Fibs of Prefix length 20, with TCAM fails: 0
Fibs of Prefix length 21, with TCAM fails: 0
Fibs of Prefix length 22, with TCAM fails: 0
Fibs of Prefix length 23, with TCAM fails: 0
Fibs of Prefix length 24, with TCAM fails: 3302
Fibs of Prefix length 25, with TCAM fails: 0
Fibs of Prefix length 26, with TCAM fails: 0
Fibs of Prefix length 27, with TCAM fails: 0
Fibs of Prefix length 28, with TCAM fails: 0
Fibs of Prefix length 29, with TCAM fails: 0
Fibs of Prefix length 30, with TCAM fails: 0
Fibs of Prefix length 31, with TCAM fails: 0
Fibs of Prefix length 32, with TCAM fails: 0
Fibs of Prefix length 33, with TCAM fails: 0


svoge-core#sh sdm prefer
The current template is "desktop routing" template.
The selected template optimizes the resources in
the switch to support this level of features for
8 routed interfaces and 1024 VLANs.

  number of unicast mac addresses:                  3K
  number of IPv4 IGMP groups + multicast routes:    1K
  number of IPv4 unicast routes:                    11K
    number of directly-connected IPv4 hosts:        3K
    number of indirect IPv4 routes:                 8K
  number of IPv4 policy based routing aces:         0.5K
  number of IPv4/MAC qos aces:                      0.5K
  number of IPv4/MAC security aces:                 1K

Edited by whitenoise

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да, всем спасибо, уже зарядил.

больше боялся.

главное было не забыть сначала прописать фильтры, а потом подымать сессию.

3750-bgp#sh ip route summary

....

Route Source Networks Subnets Overhead Memory (bytes)

Total 707 1455 134528 389824

3750-bgp#

 

 

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