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Cisco Bug: CSCsz36180 - FR- header compression issue: active and passive configs

Last Modified

Feb 02, 2017

Products (43)

  • Cisco IOS
  • Cisco 878 Integrated Services Router
  • Cisco 1803 Integrated Services Router
  • Cisco Catalyst 6500 Series Communication Media Module
  • Cisco 1812 Integrated Services Router
  • Cisco VG224 Analog Voice Gateway
  • Cisco AS5400XM Universal Gateway
  • Cisco 7206 Router
  • Cisco 7301 Router
  • Cisco AS5350XM Universal Gateway
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Known Affected Releases

12.4(15)T12 12.4(15)T15 12.4(15)T16 12.4(15)T17 12.4(22)T4 12.4(23e) 12.4(24)T5 12.4(24.4)T 12.4(24.5.7)PIC1 12.4(25e) 12.4(25f) 15.0(1)M4.9 15.0(1)M7.21 15.1(0.18)T 15.1(0.5)T 15.1(1)T2.9 15.1(2)T3.1 15.1(2.2)T 15.1(24.6.13)PIL13 15.1(3)T0.4 15.1(3)T1.5 15.1(3)T2.3 15.1(3.14)T 15.1(3.22)M0.1 15.1(3.7)T 15.1(4)M0.7 15.1(4)M2.6 15.1(4)M5.16 15.2(0.0.15)PIL16 15.2(0.13)T 15.2(0.13.3)PIB17 15.2(0.6)PI16 15.2(1)T1.11 15.2(1.14)T0.1 15.2(1.6)T 15.2(2.2)T 15.2(2.8)T 15.2(3)T2.1 15.2(3.7)T 15.3(0.16)T 15.3(0.18)T 15.3(0.18)T0.1 15.3(0.18)T0.6 15.3(1)T0.1 15.3(1.17)T0.1 15.3(1.8)T 15.3(2.3)T

Description (partial)


Enabling passive header compression on interface where active header compression is enabled doesn't
get reflect in show running configuration of interface. Though its get updated in show frame-relay
map command output.

Also, the header compression is not working as desired after this configuration. Ideally if both
side are configured for Passive, compression should not happen. In this case compression is
happening though "sh frame relay map" command shows both interfaces are configured as passive.


Following command:
frame-relay map ip <ip> <dlci> compress passive
given after 
frame-relay map ip <ip> <dlci> compress active
for same ip and dlci values does not take effect.
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