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10:27
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MaxBw.unpack()   A

↳ Parent: exabgp.bgp.message.update.attribute.bgpls.link.maxbw

Complexity

Conditions 1

Size

Total Lines 4
Code Lines 4

Duplication

Lines 0
Ratio 0 %

Importance

Changes 0
Metric Value
cc 1
eloc 4
nop 3
dl 0
loc 4
rs 10
c 0
b 0
f 0
1 
# encoding: utf-8
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"""
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maxbw.py
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Created by Evelio Vila on 2016-12-01.

            


            
                                                                                                            
                            
            
                                    
            
            

                
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Copyright (c) 2014-2017 Exa Networks. All rights reserved.

            


            
                                                                                                            
                            
            
                                    
            
            

                
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"""

            


            
                                                                                                            
                            
            
                                    
            
            

                
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from struct import unpack

            


            
                                                                                                            
                            
            
                                    
            
            

                
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from exabgp.bgp.message.notification import Notify

            


            
                                                                                                            
                            
            
                                    
            
            

                
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from exabgp.bgp.message.update.attribute.bgpls.linkstate import LinkState

            


            
                                                                                                            
                            
            
                                    
            
            

                
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from exabgp.bgp.message.update.attribute.bgpls.linkstate import BaseLS

            


            
                                                                                                            
                            
            
                                    
            
            

                
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#  This sub-TLV contains the maximum bandwidth that can be used on this

            


            
                                                                                                            
                            
            
                                    
            
            

                
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#   link in this direction (from the system originating the LSP to its

            


            
                                                                                                            
                            
            
                                    
            
            

                
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#   neighbors).

            


            
                                                                                                            
                            
            
                                    
            
            

                
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#    https://tools.ietf.org/html/rfc5305#section-3.4

            


            
                                                                                                            
                            
            
                                    
            
            

                
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#

            


            
                                                                                                            
                            
            
                                    
            
            

                
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#  Units are in Bytes not Bits.

            


            
                                                                                                            
                            
            
                                    
            
            

                
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#  ----------------------------

            


            
                                                                                                            
                            
            
                                    
            
            

                
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@LinkState.register()

            


            
                                                                                                            
                            
            
                                    
            
            

                
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class MaxBw(BaseLS):

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    TLV = 1089

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    REPR = 'Maximum link bandwidth'

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    JSON = 'maximum-link-bandwidth'

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    LEN = 4

            


            
                                                                                                            
                                                                
            
                                    
            
            

                
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    @classmethod

            


            
                                                        
            
                                    
            
            

                
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    def unpack(cls, data, length):

            


            
                                                        
            
                                    
            
            

                
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        cls.check(length)

            


            
                                                        
            
                                    
            
            

                
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        return cls(unpack('!f', data)[0])

            


            
                                                        
            
                                    
            
            

                
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